Generic winch mounting hardware kit for Jeep-style plates — 4pc 10.9-class zinc-plated bolts & hardened washers

Heavy-duty 10.9-class winch mounting kit built to secure up to 12,000 lb winches to Jeep-style steel plates with hardened bolts, thick fender washers and square nuts.

After installing many winches, we found the factory fasteners often were the weak link. This Region Offroad universal mounting hardware replaces mid-grade components with metric 10.9-class, heat-treated bolts and hardened washers that resist stretching and concentrate clamp force safely. The set is zinc-plated for corrosion resistance and sized to fit common winch mounting plates used on Jeeps and similar vehicles.

How does this kit improve winch mounting strength?

The kit upgrades all critical fasteners from typical 8.8-class hardware to 10.9-class grade, which offers substantially higher tensile strength and better shear resistance. Hardened, extra-thick fender washers increase contact area and reduce plate deformation, while split lock washers and square nuts maintain clamp load under vibration and shock.

• 10.9-class flange bolts for higher tensile and shear capacity
• 10.9-class hardened fender washers spread load across the mounting plate
• Split lock washers to resist loosening under vibration
• Square nuts for secure fit in common winch plates and frames

Will this hardware fit my Jeep’s winch plate?

The kit is manufactured to be universal and fits most standard winch mounting patterns and steel plates used on Jeep bumpers and aftermarket mounts. However, because there is some variation in hole sizes and spacing, verify bolt diameter and plate thickness before installation to ensure proper fit and engagement.

• Designed for common winch bolt patterns found on many brands
• Check plate hole diameter compatibility before purchase
• Works on steel plates; confirm clearance for square nuts in your bumper

What exactly is included and what are the materials/finish?

The package contains a complete set of four mounting fasteners sized to replace typical winch bolts plus matched washers and nuts. All components are metric 10.9-class hardened steel with a yellow zinc plating that offers corrosion resistance and a uniform appearance under a winch.

• (4) 10.9-class flange bolts — heat-treated for strength
• (4) 10.9-class hardened extra-thick fender washers for load distribution
• (4) split lock washers to help prevent loosening
• (4) square nuts to sit securely in winch plate slots

How should I install and torque these fasteners?

Install through the winch base and plate so fender washers sit against the mounting surface; use the square nuts on the rear side in their locating slots. Torque to the winch manufacturer’s recommended spec where available; if not specified, use a torque value appropriate for metric 10.9 bolts of that diameter to avoid under- or over-torquing.

• Place fender washers beneath bolt heads for even load
• Use square nuts in plate slots or secure with appropriate backing
• Follow winch or bolt-diameter torque specs to maintain clamp load

Who is this for: Off-road enthusiasts, Jeep owners and anyone mounting a medium-to-large winch who wants to replace factory-supplied, mid-grade hardware with a higher-strength, hardened metric 10.9 kit. It’s especially useful when securing winches up to the 12,000 lb class to steel mounting plates and when reliability under repeated shock and vibration is a priority. Sold by a small U.S. business focused on practical, heavy-duty upgrades for recovery gear.