

Hero image 0 of Proform 66826 Wedge-Locking Header Bolts, 8mm x 1.181 Inch, 0 of 3
Proform 66826 Wedge-Locking Header Bolts, 8mm x 1.181 Inch
(No ratings yet)
Key item features
- Wedge-Locking Technology Eliminates Constantly Re-Tightening Exhaust Collector Bolts; Blocks Bolt-Loosening Rotation caused by Vehicle Vibrations.
- Grade 8 (12.9) Steel
- Hex Head Type
- 1.181-inch Length
- Fits Select Ford 16 Bolt 8mm Diameter Applications
Specs
- Vehicle fitment typeUniversal
- BrandProForm
- Automotive specialty part typeHeader Hardware
- Has written warrantyNo
- Vehicle typeMotor Vehicle
- Pack quantity1
Current price is USD$47.21
Price when purchased online
Free 60-day returns
How do you want your item?
Columbus, 43215
Arrives by Fri, Feb 20
|Shipping fee $13.99
Sold and shipped by Speedway Motors, INC
4.477341389728097 stars out of 5, based on 331 seller reviews(4.5)331 seller reviews
Free 60-day returns
About this item
Product details
Each PROFORM Grade 8 Header Bolt is permanently assembled with a pair of special washers. When the bolt is torqued to 28+ ft-lbs, the washers super-hardened external teeth bite into and grip the bottom of the bolt head and the top surface of the header. After being self-locked in this manner, any bolt-loosening rotation is blocked by a wedge-locking action created by the washers interfacing, matching cams. Its an uphill climb: vibration that might ordinarily loosen the bolt actually increases the wedge-locking tension, securing the bolt even more. Because this simple wedge-locking method uses tension instead of friction, contact with oil actually facilitates the wedge effect. When changing headers, PROFORM Header Bolts can be untightened with a normal wrench, lubricated, and reused. Wedge-Locking Technology Eliminates Constantly Re-Tightening Exhaust Collector Bolts; Blocks Bolt-Loosening Rotation caused by Vehicle Vibrations. Grade 8 (12.9) Steel. Hex Head Type. 1.181-inch Length. Fits Select Ford 16 Bolt 8mm Diameter Applications. PROFORM Parts Brand Product. Sold as Set of 16.
- Wedge-Locking Technology Eliminates Constantly Re-Tightening Exhaust Collector Bolts; Blocks Bolt-Loosening Rotation caused by Vehicle Vibrations.
- Grade 8 (12.9) Steel
- Hex Head Type
- 1.181-inch Length
- Fits Select Ford 16 Bolt 8mm Diameter Applications
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it. Â
Specifications
Vehicle fitment type
Universal
Brand
ProForm
Automotive specialty part type
Header Hardware
Has written warranty
No
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Warnings
Similar items you might like
Based on what customers bought
HEAD BOLT CHRY 2.7L 167 2 $46.63
$4663current price $46.63HEAD BOLT CHRY 2.7L 167 2
Save withShipping, arrives in 2 days1/2"-13 X 2-1/2" U.S.S. Hex Flange Bolt Grade 8 $47.94
$4794current price $47.941/2"-13 X 2-1/2" U.S.S. Hex Flange Bolt Grade 8
Shipping, arrives in 3+ daysBelltech 4977 Pinion Shim Set $46.98
$4698current price $46.98Belltech 4977 Pinion Shim Set
Shipping, arrives in 3+ days6 x 25 mm. Flange Bolt $20.98
$2098current price $20.986 x 25 mm. Flange Bolt
Shipping, arrives in 3+ daysHEAD BOLT SUZ 1.6L 1590 $39.12
$3912current price $39.12HEAD BOLT SUZ 1.6L 1590
Save withShipping, arrives in 2 days671-1002 8 mm x 1.25 in. 12 Point Bolt Kit - Set of 5 $36.26
$3626current price $36.26671-1002 8 mm x 1.25 in. 12 Point Bolt Kit - Set of 5
Shipping, arrives in 3+ daysHEAD BOLT TOY 4.7L 4663 2 $44.48
$4448current price $44.48HEAD BOLT TOY 4.7L 4663 2
Save withShipping, arrives in 2 days0.25 x 2 in. Quick Release T-Handle Pins $41.13
$4113current price $41.130.25 x 2 in. Quick Release T-Handle Pins
Shipping, arrives in 3+ daysBuildpro Ball Lock Bolt, 1.3 in H, 0.5 in W T55020 $44.05
$4405current price $44.05Buildpro Ball Lock Bolt, 1.3 in H, 0.5 in W T55020
Shipping, arrives in 3+ daysHhip 3/4-10 X 3" T-Slot Bolt 3900-1289 $18.86
$1886current price $18.86Hhip 3/4-10 X 3" T-Slot Bolt 3900-1289
Shipping, arrives in 3+ daysHEAD BOLT FORD 5.0L 302 O $40.43
$4043current price $40.43HEAD BOLT FORD 5.0L 302 O
Save withShipping, arrives in 2 daysJCB PART - BUCKET SHIM ID - 40 MM X 1 MM (SET OF 10 PIECE) $51.00
$5100current price $51.00JCB PART - BUCKET SHIM ID - 40 MM X 1 MM (SET OF 10 PIECE)
Shipping, arrives in 3+ daysProform LS Valve Cover Mounting Bolts 8pcs. $39.98
$3998current price $39.98Proform LS Valve Cover Mounting Bolts 8pcs.
15 out of 5 Stars. 1 reviewsSave withShipping, arrives tomorrowHEAD BOLT TOY 2.4L 22R 22 $25.86
$2586current price $25.86HEAD BOLT TOY 2.4L 22R 22
Save withShipping, arrives in 2 daysPIN-14MM X 1.8897"-UNCHROMED-2&4 CY S394 $29.83
$2983current price $29.83PIN-14MM X 1.8897"-UNCHROMED-2&4 CY S394
Shipping, arrives in 3+ daysHEAD BOLT FORD 3.8L 232 O $30.50
$3050current price $30.50HEAD BOLT FORD 3.8L 232 O
Save withShipping, arrives in 2 daysHEAD BOLT CHRY 2.4L 148 D $53.03
$5303current price $53.03HEAD BOLT CHRY 2.4L 148 D
Save withShipping, arrives in 2 daysHEAD BOLT TOY 1.5L 1NZFE $34.78
$3478current price $34.78HEAD BOLT TOY 1.5L 1NZFE
Save withShipping, arrives in 2 days1/2"-13 X 1-1/2" U.S.S. Hex Flange Bolt Grade 8 $43.94
$4394current price $43.941/2"-13 X 1-1/2" U.S.S. Hex Flange Bolt Grade 8
Shipping, arrives in 3+ daysWichard Self-Locking Large Shackle - Diameter 5mm - 3/16" [01262] $34.93
$3493current price $34.93Wichard Self-Locking Large Shackle - Diameter 5mm - 3/16" [01262]
Shipping, arrives in 3+ days
Popular items in this category
Best selling items that customers love
Proform 67561 Pushrod $27.20 Was $32.72
Now$2720current price Now $27.20, Was $32.72$32.72You save $5.52You save$5.52Proform 67561 Pushrod
34 out of 5 Stars. 3 reviewsSave withShipping, arrives tomorrowProform 141-756 Engine Valve Cover Nut $37.73
$3773current price $37.73Proform 141-756 Engine Valve Cover Nut
25 out of 5 Stars. 2 reviewsSave withShipping, arrives tomorrowProForm Engine Rotation Adapter Automotive Specialty Parts, 0.6 lb $31.86
$3186current price $31.86ProForm Engine Rotation Adapter Automotive Specialty Parts, 0.6 lb
54.6 out of 5 Stars. 5 reviewsSave withShipping, arrives tomorrowProform 141-757 Bowtie Valve Cover Hold-Down Clamps Fits $26.99
$2699current price $26.99Proform 141-757 Bowtie Valve Cover Hold-Down Clamps Fits
44.8 out of 5 Stars. 4 reviewsSave withShipping, arrives tomorrowProform Parts Ignition Wire Loom Automotive Specialty Parts, 0.25 lb $23.15
$2315current price $23.15Proform Parts Ignition Wire Loom Automotive Specialty Parts, 0.25 lb
15 out of 5 Stars. 1 reviewsSave withShipping, arrives tomorrowStage 8 8916 Locking Header Bolts 8mm x 1.25 - 25mm Long - Hex Head - Set of 17 $72.62 $95.55/count
$7262current price $72.62$95.55/countStage 8 8916 Locking Header Bolts 8mm x 1.25 - 25mm Long - Hex Head - Set of 17
33.7 out of 5 Stars. 3 reviewsSave withShipping, arrives tomorrowProform 66491 Oil Pump Pick-Up Driver Tool $26.21
$2621current price $26.21Proform 66491 Oil Pump Pick-Up Driver Tool
34 out of 5 Stars. 3 reviewsSave withShipping, arrives tomorrowProform 141-322 PFM141-322 AIR CLNR CNTR NUT BOW TIE SM $19.17
$1917current price $19.17Proform 141-322 PFM141-322 AIR CLNR CNTR NUT BOW TIE SM
64.7 out of 5 Stars. 6 reviewsSave withShipping, arrives in 3+ daysFig. 4 / Part No.08 GY6 Bolt for Timing Chain Tensioner 22mm X 6mm (Set of 2) $7.98
$798current price $7.98Fig. 4 / Part No.08 GY6 Bolt for Timing Chain Tensioner 22mm X 6mm (Set of 2)
Shipping, arrives in 3+ daysOTC Wheel Bearing Locknut Socket wheel bearing locknut, 1.00 x 6.00 x 1.00 inches $32.92 $32.92/count
$3292current price $32.92$32.92/countOTC Wheel Bearing Locknut Socket wheel bearing locknut, 1.00 x 6.00 x 1.00 inches
14 out of 5 Stars. 1 reviewsSave withShipping, arrives tomorrowProform Aluminum Fuel Bowl Kit $116.95
$11695current price $116.95Proform Aluminum Fuel Bowl Kit
55 out of 5 Stars. 5 reviewsShipping, arrives in 3+ daysProform LS1/LS6 Roller Rockers 1.7 Ration Aluminum $315.07 $315.07/count
$31507current price $315.07$315.07/countProform LS1/LS6 Roller Rockers 1.7 Ration Aluminum
Save withShipping, arrives tomorrowSTUD GIRDLE 7/16-20 X 2.000 .750 BODY DIAMETER $215.99
$21599current price $215.99STUD GIRDLE 7/16-20 X 2.000 .750 BODY DIAMETER
Save withShipping, arrives tomorrowProForm Chevy Push-in Breather Cap $45.14 Was $52.19
Now$4514current price Now $45.14, Was $52.19$52.19You save $7.05You save$7.05ProForm Chevy Push-in Breather Cap
Save withShipping, arrives tomorrowProform 141-332 PFM141-332 AIR CLNR NUT SML HI-TECH GM $25.52 Was $34.05
Now$2552current price Now $25.52, Was $34.05$34.05You save $8.53You save$8.53Proform 141-332 PFM141-332 AIR CLNR NUT SML HI-TECH GM
Save withShipping, arrives tomorrowPerformance Tool W87126 2/3 Jaw Gear Puller with 3-1/4-Inch Reach X 7-Inch Spread $25.00 $25.00/count
$2500current price $25.00$25.00/countPerformance Tool W87126 2/3 Jaw Gear Puller with 3-1/4-Inch Reach X 7-Inch Spread
13 out of 5 Stars. 1 reviewsShipping, arrives in 3+ daysSunex 54121 1-Piece 1 in. Drive 41mm x 21mm Combination Budd Wheel Impact Socket $50.79 $50.79/count
$5079current price $50.79$50.79/countSunex 54121 1-Piece 1 in. Drive 41mm x 21mm Combination Budd Wheel Impact Socket
Shipping, arrives in 3+ daysOEMTools 36mm Axle Nut Socket $15.48
$1548current price $15.48OEMTools 36mm Axle Nut Socket
Shipping, arrives in 3+ daysProform 67566 Oil Pump Primer $32.56 Was $43.69
Now$3256current price Now $32.56, Was $43.69$43.69You save $11.13You save$11.13Proform 67566 Oil Pump Primer
Save withShipping, arrives tomorrow3500 lb Weld Your Own Idler Trailer Axle Kit, 3.5K Capacity (#84 Spindle) / 5x4.5 Bolt Pattern $154.00
$15400current price $154.003500 lb Weld Your Own Idler Trailer Axle Kit, 3.5K Capacity (#84 Spindle) / 5x4.5 Bolt Pattern
15 out of 5 Stars. 1 reviewsShipping, arrives in 3+ days
Customer ratings & reviews
0 ratings|0 reviews
This item does not have any reviews yet
