

Hero image 0 of Hillman Stop Nuts, 5/16-18", Steel, Zinc Finish, Silver, Interior, 5 pack, 0 of 10
Best seller
Hillman Stop Nuts, 5/16-18", Steel, Zinc Finish, Silver, Interior, 5 pack
Hillman Stop Nuts, 5/16-18", Steel, Zinc Finish, Silver, Interior, 5 packHillman Stop Nuts 5 16 18 Steel Nylon Inserts Zinc Plated 5 PackHillman Stop Nuts Lock Nuts 3 8 16 Nylon Zinc Plated Pack of 45 pack Hillman Stop Nuts 5 16 18 Steel Nylon Inserts Zinc Plated 5 PackHillman Stop Nuts Lock Nuts 8 32 Nylon Zinc Plated Pack of 10Hillman Stop Nuts Lock Nuts 1 4 20 Nylon Zinc Plated Pack of 66 pack Hillman Stop Nuts Lock Nuts 1 4 20 Nylon Zinc Plated Pack of 65 pack Hillman Stop Nuts Lock Nuts 10 24 Nylon Zinc Plated Pack of 8Hillman Stop Nuts Lock Nuts 10 24 Nylon Zinc Plated Pack of 86 pack Hillman Stop Nuts Lock Nuts 8 32 Nylon Zinc Plated Pack of 10
Size:5/16"-Out of stock
Pack Size:Single-Out of stock
Key item features
- Secure Fastening: Designed for mechanically joining materials, these stop nuts securely fasten to a bolt, providing a reliable connection for various applications.
- Vibration Resistance: Featuring nylon inserts, these nuts offer enhanced security against loosening, effectively resisting vibrations to maintain a tight hold.
- Durable Construction: Crafted from steel with a zinc-plated finish, these nuts provide durability and added corrosion resistance, ensuring long-lasting performance.
- Easy Installation: Installation is straightforward, requiring only common hand tools like a combination wrench for efficient and hassle-free assembly.
- Precise Dimensions: These stop nuts are sized at 5/16"-18, featuring a coarse #8-32 screw thread for compatibility with corresponding bolts and washers.
- Convenient Packaging: Each pack contains 5 stop nuts, providing a practical quantity for various fastening needs.
Generated by AI
Specs
- Hardware nut typeLock
- MaterialSteel
- FinishZinc
- GradeGrade 2
- Thread pitch0.31 mm
- FeaturesEasy Installation
Current price is USD$1.5631.2 ¢/ea
Price when purchased online
Not Available
How do you want your item?
Not available
Continue your search on Walmart
Similar items you might like
Based on what customers bought
Best seller Hyper Tough 178-Piece Hex Nut Assortment with Case, 3305, Carbon Steel, .98 lb $7.47
Best seller
Sponsored$747current price $7.47Hyper Tough 178-Piece Hex Nut Assortment with Case, 3305, Carbon Steel, .98 lb
1194.5 out of 5 Stars. 119 reviewsSave withPickup todayDelivery todayShipping, arrives tomorrow(6 pack) Hillman Hex Nuts M6X1.00, Metric, Zinc Finish, Steel, 10 Pieces $11.64
15 optionsAvailable in additional 15 options$1164current price $11.64Options from $11.64 – $17.76(6 pack) Hillman Hex Nuts M6X1.00, Metric, Zinc Finish, Steel, 10 Pieces
1244.7 out of 5 Stars. 124 reviewsSave withShipping, arrives tomorrowBolt Dropper #10-24 Nylon Lock Nut (100) Stainless Steel $9.99
Sponsored$999current price $9.99Bolt Dropper #10-24 Nylon Lock Nut (100) Stainless Steel
25 out of 5 Stars. 2 reviewsSave withShipping, arrives in 2 days(5 pack) Hillman Wing Nuts, Type A Wing Nuts, 1/4-20", Steel, Zinc Finish, Silver, 8 pack $12.85
4 optionsAvailable in additional 4 options$1285current price $12.85(5 pack) Hillman Wing Nuts, Type A Wing Nuts, 1/4-20", Steel, Zinc Finish, Silver, 8 pack
634.6 out of 5 Stars. 63 reviewsSave withShipping, arrives tomorrowRIGHT HAND TURNBUCKLE NUT 316 STAINLESS STEEL UNF 1/4" (S0305-0007) $4.46
$446current price $4.46RIGHT HAND TURNBUCKLE NUT 316 STAINLESS STEEL UNF 1/4" (S0305-0007)
Shipping, arrives in 3+ daysBekayaa Hex Nuts M6, DIN 985 Hex Nuts A2-70 Stainless Steel Self-Locking Nuts Stop Nuts Lock Nuts for Bolts, Screws (M6, Pack of 20) $9.99
$999current price $9.99Bekayaa Hex Nuts M6, DIN 985 Hex Nuts A2-70 Stainless Steel Self-Locking Nuts Stop Nuts Lock Nuts for Bolts, Screws (M6, Pack of 20)
Shipping, arrives in 3+ days10#-32 Nylon Insert Hex Lock Nuts Carbon Steel White Zinc Plated 25 Pcs $9.69
$969current price $9.6910#-32 Nylon Insert Hex Lock Nuts Carbon Steel White Zinc Plated 25 Pcs
15 out of 5 Stars. 1 reviewsShipping, arrives in 3+ daysHex Nut, 8mm, Zinc Plated $5.18
$518current price $5.18Hex Nut, 8mm, Zinc Plated
Shipping, arrives in 3+ daysM6 Cap Nut Hex Acorn Dome Head Nuts for Screws Bolts Nylon Black 10 Pcs $7.69
$769current price $7.69M6 Cap Nut Hex Acorn Dome Head Nuts for Screws Bolts Nylon Black 10 Pcs
Save withShipping, arrives tomorrowWheels Mfg Axle nut, steel - 9x1mm Single - Sold Each $6.49 Was $8.95
Now$649current price Now $6.49, Was $8.95$8.95Wheels Mfg Axle nut, steel - 9x1mm Single - Sold Each
25 out of 5 Stars. 2 reviewsShipping, arrives in 3+ days#10-24 Zinc Grade 2 Nylon Insert Lock Nuts LKNUT-071 (10 pcs.) $6.73
$673current price $6.73+$5.99 shipping#10-24 Zinc Grade 2 Nylon Insert Lock Nuts LKNUT-071 (10 pcs.)
Shipping, arrives in 3+ days3/8"-24 Zinc Plated Steel Fine Thread Serrated Lock Nuts (10 pcs.) $7.55
$755current price $7.55+$5.99 shipping3/8"-24 Zinc Plated Steel Fine Thread Serrated Lock Nuts (10 pcs.)
Shipping, arrives in 3+ daysSTAINLESS HEX NUT, RH UNC, #20 (5/16"), 316 SS $11.23
$1123current price $11.23+$6.99 shippingSTAINLESS HEX NUT, RH UNC, #20 (5/16"), 316 SS
Shipping, arrives in 3+ days1/4"-20 Nylon Plastic Coarse Thread Lock Nuts LNN-073 (10 pcs.) $15.33
$1533current price $15.331/4"-20 Nylon Plastic Coarse Thread Lock Nuts LNN-073 (10 pcs.)
Shipping, arrives in 3+ daysUxcell 4 Pcs Brass Lock Nuts Pipe Fitting G1/2"-14 Female Hex Locknut Flange Single Hole Faucet Lock Nut with Washer $7.79 Was $8.79
Now$779current price Now $7.79, Was $8.79$8.79Uxcell 4 Pcs Brass Lock Nuts Pipe Fitting G1/2"-14 Female Hex Locknut Flange Single Hole Faucet Lock Nut with Washer
Shipping, arrives in 3+ daysMTD Blade Spindle Hex Nut, Standard Size, Bolt-On Installation $4.42
$442current price $4.42MTD Blade Spindle Hex Nut, Standard Size, Bolt-On Installation
24 out of 5 Stars. 2 reviewsSave withShipping, arrives in 2 days5/16"-24 Zinc Grade 2 Nylon Insert Lock Nuts LKNUT-092 (10 pcs.) $7.66
$766current price $7.66+$5.99 shipping5/16"-24 Zinc Grade 2 Nylon Insert Lock Nuts LKNUT-092 (10 pcs.)
Shipping, arrives in 3+ days3/8"-16 Zinc Grade 2 Nylon Insert Lock Nuts LKNUT-098 (10 pcs.) $7.81
$781current price $7.81+$5.99 shipping3/8"-16 Zinc Grade 2 Nylon Insert Lock Nuts LKNUT-098 (10 pcs.)
Shipping, arrives in 3+ daysViega RXLN3 1/2" Manablock Lock Nut $8.22
$822current price $8.22Viega RXLN3 1/2" Manablock Lock Nut
Shipping, arrives in 3+ daysM10x1.25mm Zinc Plated Self-Locking Nylon Insert Hex Nut 10pcs $9.96
$996current price $9.96M10x1.25mm Zinc Plated Self-Locking Nylon Insert Hex Nut 10pcs
15 out of 5 Stars. 1 reviewsShipping, arrives in 3+ days
About this item
Product details
Hillman Stop Nuts, 5/16"-18, Steel, Zinc Plated, 5 Pack are ideal for securely fastening a bolt when connecting materials. Use these hex nuts with bolts and washers of the same material, finish, and grade. The nylon ring inside the nut creates rotational resistance and prevents loosening. The nylon insert also helps resist vibration and adds extra corrosion resistance.
- The stop nuts are designed to be fastened to a bolt when mechanically joining materials
- The stop nut's feature nylon inserts that offer added security against loosening from vibration
- The stop nuts feature a zinc-plated finish - installation is easy with hand tools such a combination wrench
- Parts feature coarse #8-32 screw thread
- Hillman Stop Nuts, 5/16"-18, Nylon, Zinc Plated, 5 Pack
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Specifications
Hardware nut type
Lock
Material
Steel
Finish
Zinc
Grade
Grade 2
Warranty
Warranty information
N/A
More items to consider
Based on what customers bought
Hillman Flat Washers, 5/16", Steel, Zinc Finish, USS Washers, Silver, 18 pack $1.56
2 optionsAvailable in additional 2 options$156current price $1.56Options from $1.56 – $10.92Hillman Flat Washers, 5/16", Steel, Zinc Finish, USS Washers, Silver, 18 pack
334.9 out of 5 Stars. 33 reviewsSave withPickup todayDelivery todayBest seller Hyper Tough 182-Piece Zinc Plated, Machine Screw and Nut Assortment with Storage Case, 3304 $7.47 4.1 ¢/ea
Best seller
Sponsored$747current price $7.474.1 ¢/eaHyper Tough 182-Piece Zinc Plated, Machine Screw and Nut Assortment with Storage Case, 3304
3354.5 out of 5 Stars. 335 reviewsSave withPickup todayDelivery todayShipping, arrives tomorrowBest seller Hyper Tough 300-Piece Flat Washer Assortment with Clear Storage Case, Zinc Plated $7.47
Best seller
Sponsored$747current price $7.47Hyper Tough 300-Piece Flat Washer Assortment with Clear Storage Case, Zinc Plated
2254.7 out of 5 Stars. 225 reviewsSave withPickup todayDelivery todayShipping, arrives tomorrowBest seller Hillman Flat Washers, 1/4", Steel, Zinc Finish, USS Washers, Silver, 25 pack $1.56 31.2 ¢/ea
Best seller
$156current price $1.5631.2 ¢/eaHillman Flat Washers, 1/4", Steel, Zinc Finish, USS Washers, Silver, 25 pack
404.6 out of 5 Stars. 40 reviewsSave withPickup todayDelivery todayShipping, arrives in 2 daysBest seller Hillman Fender Washers, 1/4" x 1-1/4", Steel, Zinc Finish, Silver, 5 pack $1.56
Best seller
2 optionsAvailable in additional 2 options$156current price $1.56Options from $1.56 – $7.80Hillman Fender Washers, 1/4" x 1-1/4", Steel, Zinc Finish, Silver, 5 pack
714.8 out of 5 Stars. 71 reviewsSave withPickup todayDelivery todayBest seller Hillman Flat Washers, #10, Steel, Zinc Finish, USS Washers, Silver, 33 pack $1.56
Best seller
3 optionsAvailable in additional 3 options$156current price $1.56Options from $1.56 – $22.94Hillman Flat Washers, #10, Steel, Zinc Finish, USS Washers, Silver, 33 pack
494.7 out of 5 Stars. 49 reviewsSave withPickup todayDelivery todayShipping, arrives tomorrow50+ bought since yesterday 8 inch Adjustable Wrench with Sure Grip Handle $5.42
50+ bought since yesterday
2 optionsAvailable in additional 2 options$542current price $5.42Options from $5.42 – $16.268 inch Adjustable Wrench with Sure Grip Handle
3524.5 out of 5 Stars. 352 reviewsSave withPickup todayDelivery todayHillman Split Lock Washers, 5/16, Steel, Zinc, Corrosion Resistant, Silver, 16 pack $1.56 9.8 ¢/count
$156current price $1.569.8 ¢/countHillman Split Lock Washers, 5/16, Steel, Zinc, Corrosion Resistant, Silver, 16 pack
74.7 out of 5 Stars. 7 reviewsSave withShipping, arrives tomorrowBest seller Hillman Flat Washers, #8, Steel, Zinc Finish, USS Washers, Silver, 45 pack $1.56 31.2 ¢/ea
Best seller
$156current price $1.5631.2 ¢/eaHillman Flat Washers, #8, Steel, Zinc Finish, USS Washers, Silver, 45 pack
2164.8 out of 5 Stars. 216 reviewsSave withPickup todayDelivery today100+ bought since yesterday HyperTough 16 Piece Hex Key Set with 8 SAE and 8 Metric Sizes TW40044Z $3.28
100+ bought since yesterday
$328current price $3.28HyperTough 16 Piece Hex Key Set with 8 SAE and 8 Metric Sizes TW40044Z
7944.7 out of 5 Stars. 794 reviewsSave withPickup todayDelivery todayShipping, arrives tomorrow(5 pack) Hillman Flat Washers, 3/8", Steel, Zinc Finish, USS Washers, Silver, 15 pack $7.80
2 optionsAvailable in additional 2 options$780current price $7.80(5 pack) Hillman Flat Washers, 3/8", Steel, Zinc Finish, USS Washers, Silver, 15 pack
484.6 out of 5 Stars. 48 reviewsSave withShipping, arrives tomorrowINTBUYING Toothbrush Toothpaste Stand Holder with 2 Cups Bathroom Storage Organizer Plastic White $7.99
$799current price $7.99INTBUYING Toothbrush Toothpaste Stand Holder with 2 Cups Bathroom Storage Organizer Plastic White
464.5 out of 5 Stars. 46 reviewsShipping, arrives in 3+ daysBest seller Hillman Split Washers, 3/16" x 3/4", Steel, Zinc Finish, Silver, 8 pack $1.56
Best seller
2 optionsAvailable in additional 2 options$156current price $1.56Options from $1.56 – $7.80Hillman Split Washers, 3/16" x 3/4", Steel, Zinc Finish, Silver, 8 pack
444.6 out of 5 Stars. 44 reviewsSave withPickup todayDelivery today1000+ bought since yesterday Expert Grill Bamboo Skewers for Grilling, 100 Count $0.97
1000+ bought since yesterday
2 optionsAvailable in additional 2 options$097current price $0.97Expert Grill Bamboo Skewers for Grilling, 100 Count
7534.6 out of 5 Stars. 753 reviewsSave withPickup todayDelivery todayShipping, arrives in 3+ daysHillman Split Washers, 1/4", Steel, Zinc Finish, Silver, 25 pack $1.56 31.2 ¢/ea
$156current price $1.5631.2 ¢/eaHillman Split Washers, 1/4", Steel, Zinc Finish, Silver, 25 pack
274.7 out of 5 Stars. 27 reviewsSave withShipping, arrives tomorrow1000+ bought since yesterday Great Value Toilet Bowl Cleaners, Fresh Scent, 24 Fluid Ounce $1.92
1000+ bought since yesterday
3 optionsAvailable in additional 3 options$192current price $1.92Options from $1.92 – $23.04Great Value Toilet Bowl Cleaners, Fresh Scent, 24 Fluid Ounce
71344.7 out of 5 Stars. 7134 reviewsSave withPickup todayDelivery todayShipping, arrives tomorrowHillman Flat Washers, 3/16", Steel, Zinc Finish, USS Washers, Silver, 33 pack $1.56 31.2 ¢/ea
$156current price $1.5631.2 ¢/eaHillman Flat Washers, 3/16", Steel, Zinc Finish, USS Washers, Silver, 33 pack
354.7 out of 5 Stars. 35 reviewsSave withPickup todayDelivery todayShipping, arrives in 2 days100+ bought since yesterday Hello Hobby Variety Craft Black Foam Brush 4pc Set, Adult, Teens $1.82
100+ bought since yesterday
2 optionsAvailable in additional 2 options$182current price $1.82Options from $1.82 – $10.92Hello Hobby Variety Craft Black Foam Brush 4pc Set, Adult, Teens
4324.6 out of 5 Stars. 432 reviewsSave withPickup todayDelivery todayShipping, arrives tomorrowScrew Eye Bolt Assortment Pack, 3 Assorted Sizes, Zinc, Peerless Chain Company, #4800660 $3.96
2 optionsAvailable in additional 2 options$396current price $3.96Options from $3.96 – $7.92Screw Eye Bolt Assortment Pack, 3 Assorted Sizes, Zinc, Peerless Chain Company, #4800660
274.9 out of 5 Stars. 27 reviewsSave withPickup todayDelivery today
Customer ratings & reviews
How item rating is calculated
Customer images




+29 images
Sort by |
Showing 1-3 of 70 reviews
Aug 12, 2025
Bezra
Top Reviewer
Item details
Size: 1/4"
Multipack quantity: 1
5 out of 5 stars review
Verified Purchase
🦄Perfect! A 5 stars!! incredible great! Great
🦄Perfect! A 5 stars!! incredible great! Great seller!!Perfect! Thanks!! 🦄🦄🦄Perfect! A 5 stars!! incredible great! Great seller!!Perfect! Thanks!! 🦄🦄
Incentivized Review
Helpful?56JBQ3LC482E979821459
Sep 2, 2025
Jay
Top Reviewer
Item details
Size: 5/16"
Multipack quantity: 1
5 out of 5 stars review
Verified Purchase
Used this hardware to repair my boat trailer. In traveling some of the nuts and bolts came loose and fell off.
Incentivized Review
Helpful?56JBQ3LC482E979821459
May 31, 2025
Sarah
Item details
Size: 1/4"
Multipack quantity: 1
5 out of 5 stars review
Verified Purchase
Price is right
Just what I needed for a reasonable price
Incentivized Review
Helpful?56JBQ3LC482E979821459
Popular items in this category
Best selling items that customers love
Hillman 1/2 in. Zinc-Plated Steel USS Nylon Lock Nut 50 pk $22.11 Was $25.13
Now$2211current price Now $22.11, Was $25.13$25.13Hillman 1/2 in. Zinc-Plated Steel USS Nylon Lock Nut 50 pk
Shipping, arrives in 3+ daysHillman 140018 No.8-32 in. Zinc Plated Hex Machine Screw Nuts - Pack of 100 $8.95
$895current price $8.95Hillman 140018 No.8-32 in. Zinc Plated Hex Machine Screw Nuts - Pack of 100
Shipping, arrives in 3+ daysHillman 5/8 In. 11 tpi Grade 2 Zinc Hex Nuts (25 Ct.) 150021 $17.89
$1789current price $17.89Hillman 5/8 In. 11 tpi Grade 2 Zinc Hex Nuts (25 Ct.) 150021
Shipping, arrives in 3+ daysHillman 3/4 In. 10 tpi Grade 2 Galvanized Zinc Hex Nuts (20 Ct.) 810518 $27.11 Was $32.99
Now$2711current price Now $27.11, Was $32.99$32.99Hillman 3/4 In. 10 tpi Grade 2 Galvanized Zinc Hex Nuts (20 Ct.) 810518
Shipping, arrives in 3+ daysHillman 829960 0.312 in. Stainless Steel Nut Cap $78.55
$7855current price $78.55Hillman 829960 0.312 in. Stainless Steel Nut Cap
Shipping, arrives in 3+ daysHillman #10 24 tpi Cold Forged Zinc Wing Nut (100 Ct.) 180243 $20.16 Was $25.77
Now$2016current price Now $20.16, Was $25.77$25.77Hillman #10 24 tpi Cold Forged Zinc Wing Nut (100 Ct.) 180243
Shipping, arrives in 3+ daysHillman M8-1.25 mm Zinc-Plated Steel Metric Hex Nut 100 pk $21.41 Was $28.88
Now$2141current price Now $21.41, Was $28.88$28.88Hillman M8-1.25 mm Zinc-Plated Steel Metric Hex Nut 100 pk
Shipping, arrives in 3+ daysHillman 180141 Nylon Insert Lock Nuts, Coarse Thread, 10-24, 100/Box $13.06 Was $14.60
Now$1306current price Now $13.06, Was $14.60$14.60Hillman 180141 Nylon Insert Lock Nuts, Coarse Thread, 10-24, 100/Box
Shipping, arrives in 3+ daysHillman 1/4 In. 20 tpi Grade 2 Zinc Hex Nuts (100 Ct.) 150003 $11.83 Was $15.22
Now$1183current price Now $11.83, Was $15.22$15.22Hillman 1/4 In. 20 tpi Grade 2 Zinc Hex Nuts (100 Ct.) 150003
Shipping, arrives in 3+ daysHillman M10-1.50 mm Zinc-Plated Steel Metric Nylon Lock Nut 50 pk $20.14 Was $29.81
Now$2014current price Now $20.14, Was $29.81$29.81Hillman M10-1.50 mm Zinc-Plated Steel Metric Nylon Lock Nut 50 pk
Shipping, arrives in 3+ daysHillman 1/2 in. Zinc-Plated Steel SAE Wing Nut 50 pk $44.27
$4427current price $44.27Hillman 1/2 in. Zinc-Plated Steel SAE Wing Nut 50 pk
Shipping, arrives in 3+ days100 Pack 10-24 Zinc Plated Steel Machine Screw Hex Nut, Each $11.14
$1114current price $11.14100 Pack 10-24 Zinc Plated Steel Machine Screw Hex Nut, Each
Shipping, arrives in 3+ daysHillman Hex Bolts and Nuts, 3/8-16" x 1-1/2", Steel, Zinc Finish, Silver, 2, sets $1.88 37.6 ¢/ea
$188current price $1.8837.6 ¢/eaHillman Hex Bolts and Nuts, 3/8-16" x 1-1/2", Steel, Zinc Finish, Silver, 2, sets
524.7 out of 5 Stars. 52 reviewsSave withShipping, arrives in 3+ daysHillman 1/4 In. 20 tpi Grade 2 Zinc Hex Machine Screw Nut (100 Ct.) 140030 $14.16 Was $18.99
Now$1416current price Now $14.16, Was $18.99$18.99Hillman 1/4 In. 20 tpi Grade 2 Zinc Hex Machine Screw Nut (100 Ct.) 140030
Shipping, arrives in 3+ daysHillman Carriage Bolts and Nuts, 5/16-18" x 1", Zinc Finish, Steel, 3 sets $3.41
$341current price $3.41Hillman Carriage Bolts and Nuts, 5/16-18" x 1", Zinc Finish, Steel, 3 sets
344.7 out of 5 Stars. 34 reviewsSave withShipping, arrives tomorrowHillman Hex Bolts and Nuts, 5/16-18" x 1-1/2", Steel, Zinc Finish, Silver, 3, sets $1.88 37.6 ¢/ea
$188current price $1.8837.6 ¢/eaHillman Hex Bolts and Nuts, 5/16-18" x 1-1/2", Steel, Zinc Finish, Silver, 3, sets
344.9 out of 5 Stars. 34 reviewsSave withShipping, arrives tomorrowBest seller Hillman Hex Bolts and Nuts, 1/4-20" x 1-1/2", Steel, Zinc Finish, Silver, 4, sets $1.88 37.6 ¢/ea
Best seller
$188current price $1.8837.6 ¢/eaHillman Hex Bolts and Nuts, 1/4-20" x 1-1/2", Steel, Zinc Finish, Silver, 4, sets
364.5 out of 5 Stars. 36 reviewsSave withShipping, arrives tomorrowBest seller (5 pack) Hillman Hex Bolts and Nuts, 1/4-20" x 1", Steel, Zinc Finish, Silver, 5, sets $9.40
Best seller
2 optionsAvailable in additional 2 options$940current price $9.40(5 pack) Hillman Hex Bolts and Nuts, 1/4-20" x 1", Steel, Zinc Finish, Silver, 5, sets
554.7 out of 5 Stars. 55 reviewsSave withShipping, arrives tomorrow





