search by Part Number
 
 

Your Suspension Lift Kit,
Body Lift Kit and 4x4 Source.

 
 
  Site Resources

STAGE 8 LOCKING FASTENER BOLTS

 

STAGE 8 LOCKING FASTENER BOLTS

Stage 8 Locking Bolts LogoStage 8 Locking Fasteners Bolts will not come loose as a result of vibration or extreme heat. Patented Stage 8 Locking Fastener Bolt Systems utilize an active mechanical locking device that positively prevents the fastener from rotating. This eliminates the "Tighter is Better" method. Stage 8 Locking Fasteners stay tight until you remove them. Considering the amount of work and time it takes to install headers, the last thing you want to do is have to redo the job because of exhaust leaks caused by loose header bolts. Stage 8 bolts will insure this never happens.

Most of Stage 8 Locking Header Bolts come with a double Hex Head and all are manufactured from 4037 grade 8 steel with a duplex nickel finish and are proudly made in the U.S.A.

Another few benefits of Stage 8's Locking Fasteners...
1. Will never losen
2. No lost horsepower
3. Not affected by heat or vibration
4. Easy installation and removal
5. Reusable
6. All sizes available
For installation tips
click the wrench.

Click for Locking Fastener Bolt Installation Tips

(Note: DHH=Double Hex Head Bolt, includes 3/16 recessed Allen Head )

 

Chevy Locking Header Bolts

6 Cylinder

Application
Description
Qty.
Pricing
Inline 6
3/8-16x1 1/4" bolts 12 pt
8
2.8 Liter
8mm-1.25 x 25mm bolts 6pt DHH
12
6 Cylinder
(exc. 2.8 Liter)
3/8-16 x 3/4" bolts 6pt DHH
12
6 Cylinder
(exc. 2.8 Liter)
3/8-16 x 1" bolts 6pt DHH
12
6 Cylinder
(exc. 2.8 Liter)
3/8-16 x 1" bolts 12pt
12
6 Cylinder
(exc. 2.8 Liter)
3/8-16 x 1" bolts 6pt Stainless DHH
45

8 Cylinder

Application
Description
Qty.
Pricing
Small Blocks 265 - 400 cu/in (exc. ZR1 or w/Brodix Heads)
3/8-16 x 3/4" bolts 6pt DHH
12
Small Blocks 265 - 400 cu/in (exc. ZR1 or w/Brodix Heads)
3/8-16 x 1" bolts 6pt DHH
12
Small Blocks 265 - 400 cu/in (exc. ZR1 or w/Brodix Heads)
3/8-16 x 1" bolts 12pt
12
Small Blocks 265 - 400 cu/in (exc. ZR1 or w/Brodix Heads)
3/8-16 x 1" bolts 6pt Stainless DHH
12
Small Blocks with Brodix Heads
3/8-16 x 1" bolts 6pt DHH
16
Small Block w/8mm bolts (LS1, LS6, LM7, 4.8 & 5.3 Liter)
8 mm- 1.25 x 25mm bolts 6pt DHH
12
Big Blocks 396 - 502 cu/in
3/8-16 x 3/4" bolts 6pt DHH
16
Big Blocks 396 - 502 cu/in
3/8-16 x 1" bolts 6pt DHH
16
Big Blocks 396 - 502 cu/in
3/8-16 x 1" bolts 12pt
16
Big Blocks 396 - 502 cu/in
3/8-16 x 1" 6pt Stainless DHH
16
ZR1 350 C.I.D.
8mm-1.25 x 30mm bolts 12pt
32
OEM Corvette Headers 1984 - 1996
3/8-16 x 2" bolts 12pt
12
6.2 Liter Diesel
10mm-1.50 x 22mm bolts 6pt
16

Buick, Oldsmobile and Pontiac 1979 and earlier

Description
Qty.
Pricing
3/8-16 x 1" bolts 6pt DHH
12
3/8-16 x 1" bolts 12pt
12
3/8 - 16 x 1" bolts 6pt Stainless DHH
12
3/8-16 x 3/4" bolts 6 pt DHH
12



Ford Locking Header Bolts

4 Cylinder

Application
Description
Qty.
Pricing
1.9 Liter Rousch Racing Head & ZTEC
8mm-1.25 x 25mm bolts 6pt DHH
10
2.0 Liter
8mm-1.25 x 25mm bolts 6 pt DHH
10
2.3 Liter
10mm-1.50 x 22mm bolts 6pt
8

6 Cylinder

Application
Description
Qty.
Pricing
2.9, 3.8, & 4.0 Liter
8mm-1.25 x 25mm bolts 6pt DHH
12
144, 170, 200, & 250 cu/in Inline
3/8-16 x 1" bolts 6pt DHH
11
240 & 300 cu/in Inline
3/8-16 x 11/4" bolts 12pt
13
Using 10mm bolts
10 mm-1.50 x 22mm bolts 6pt
12

8 Cylinder

Application
Description
Qty.
Pricing
4.6 Liter Modular
8mm-1.25 x 25mm bolts 6pt DHH
16
5.0 Liter
3/8-16 x 3/4" bolts 6pt DHH
16
5.0 Liter
3/8-16 x 1" bolts 6pt DHH
16
5.0 Liter
3/8-16 x 1" bolts 12pt
16
5.0 Liter
3/8-16 x 1" bolts 6pt Stainless DHH
16
5.4 Liter Modular
8mm-1.25 x 25mm bolts 6pt DHH
16
Small Blocks 260-351 cu/in
3/8-16 x 3/4" bolts 6pt DHH
16
Small Blocks 260-351 cu/in
3/8-16 x 1" bolts 6 pt DHH
16
Small Blocks 260-351 cu/in
3/8-16 x 1" bolts 12pt
16
Small Blocks 260-351 cu/in
3/8-16 x 1" bolts 6pt Stainless DHH
16
Big Blocks 390-460 cu/in (incl 351C & 351M)
3/8-16 x 3/4" bolts 6pt DHH
16
Big Blocks 390-460 cu/in (incl 351C & 351M)
3/8-16 x 1" bolts 6pt DHH
16
Big Blocks 390-460 cu/in (incl 351C & 351M)
3/8-16 x 1" bolts 12pt
16
Big Blocks 390-460 cu/in (incl 351C & 351M)
3/8 - 16 x 1" bolts 6pt Stainless DHH
16

10 Cylinder

Application
Description
Qty.
Pricing
6.8 Liter Modular