Clayton Off Road 1/2-20 x 3.5" Grade 8 Bolt Kit for Jeep Suspension

Is This for You?

• You're replacing or servicing a Clayton control arm and need the correct OEM-spec hardware — this is the exact bolt, washer, and locknut spec used in Clayton's suspension kits.
• You've stripped or lost the original hardware during a trail repair or rebuild — 1/2-20 x 3.5" Grade 8 with an all-metal top-lock nut is not a hardware store item; get the right spec the first time.
• You're running a high-heat or high-vibration application where nylon insert locknuts fail — the all-metal top-lock design holds torque without degrading under heat cycles.

The Result

• Grade 8 / IFI-100/107 Grade C bolt rated to 102 ft-lbs torque — correct spec for 1/2-20 suspension pivot hardware.
• All-metal top-lock nut with deformed thread locking zones — vibration-resistant without nylon inserts that soften under heat.
• Zinc-plated hardware — corrosion-resistant in normal atmospheric and off-road environments.

The COR-1100119 bolt kit is a precision-spec hardware set for Clayton Off Road suspension applications requiring 1/2-20 thread pitch at 3.5" grip length. The Grade 8 bolt (ANSI B1.1 UNC/UNF Class 2B thread) is paired with two hardened washers and an all-metal top-lock nut rated IFI-100/107 Grade C — the all-metal equivalent of a Grade 8 fastener. The top-lock nut uses a deformed thread section at the crown to create two to three locking zones that engage under wrench torque, not hand pressure. This design maintains clamp load under vibration and thermal cycling where nylon insert locknuts lose retention. Zinc plating provides baseline corrosion resistance for trail and road use. Torque to 102 ft-lbs using a calibrated torque wrench — do not hand-tighten to final position.

Audit Table

Verified Fitment (OFAS Standard)

✅ Fits Clayton Off Road suspension applications requiring 1/2-20 x 3.5" Grade 8 hardware
✅ Compatible with Clayton control arm Johnny Joint frame-side mounts using 1/2" bolt spec
❌ Does NOT replace 9/16" bolt applications (verify your Clayton kit's hardware spec before ordering)
❌ Does NOT fit metric thread applications

Installation & Fabrication Notes

• Top-Lock Nut Warning: This nut will NOT thread on by hand to final position. Start threads by hand to confirm engagement, then drive to torque with a wrench.
• Torque to 102 ft-lbs using a calibrated torque wrench. Do not impact-gun to final torque.
• Install with one washer under the bolt head and one washer under the nut.
• Zinc plating is not a substitute for anti-seize in high-corrosion environments — apply anti-seize to threads if operating in salt, mud, or submerged conditions.
• Inspect hardware at each service interval; all-metal locknuts are single-use by IFI specification — replace if removed.

Wheel & Tire Fitment

Hardware kit — no wheel or tire fitment restrictions apply. Verify bolt spec matches your specific Clayton suspension component before ordering.

Engineering Question: Are you replacing hardware on a Clayton control arm or another suspension pivot? Confirm your application requires 1/2-20 thread pitch and 3.5" grip length before ordering — using incorrect grip length will result in improper clamp load and potential joint failure.