3/4" x 3-1/2" 316 Stainless Steel Axle Bolt Kit with Zerk Fitting, Hex Nut & Lock Washer

Marine-Grade Fastening Solution for Sheave Systems, Boat Lifts, and Dock Assemblies

Get a complete, rust-resistant solution with our 3/4"-10 x 3-1/2" Axle Bolt Kit. Precision-machined from 316 marine-grade stainless steel, this bolt features a built-in 1/4" zerk grease fitting for easy maintenance. This all-in-one kit now includes a matching 316 stainless steel hex nut and split lock washer—everything you need for fast, secure, and long-lasting installation in marine and outdoor environments.

Key Features

• Complete Kit: Includes stainless axle bolt, 316 stainless hex nut, and 316 stainless split lock washer.
• Heavy-Duty Bolt: 3/4" diameter × 3-1/2" length with 10 TPI (threads per inch) for solid and stable fastening.
• Grease Fitting: Built-in 1/4" zerk grease fitting allows easy lubrication for extended service life.
• 316 Marine-Grade Stainless Steel: Superior corrosion resistance—ideal for saltwater, dock, or harsh outdoor environments.
• Universal Fit: Coarse thread profile fits standard brackets, sheave housings, and axle components.

Product Description

Everything You Need in One Kit:
Simplify your build or repair with this all-in-one axle bolt kit. The included 316 stainless hex nut ensures a solid lock, while the split lock washer prevents loosening under vibration—perfect for sheave housings, beam clamps, or rotating assemblies.

Maintenance Made Easy:
The built-in grease fitting allows for quick and direct lubrication, keeping your sheave system or axle mechanism running smoothly with less wear and lower friction.

Marine-Ready Durability:
Designed for heavy-duty use in wet, corrosive environments, this kit resists rust, pitting, and degradation—even in saltwater dock and boat lift setups.

Specifications

• Bolt Size: 3/4"-10 x 3-1/2"
• Thread Type: Coarse Thread (UNC)
• Material: 316 (A4) Marine-Grade Stainless Steel
• Grease Fitting: 1/4" Stainless Steel zerk press-fit
• Nut: 3/4"-10 Hex Nut – 316 Stainless Steel
• Washer: 3/4" Split Lock Washer – 316 Stainless Steel
• Total Weight: Approx. 0.5 lbs.
• Recommended Use: Boat lift cable systems, dock assemblies, aluminum sheave housings, I-beam brackets

Why Choose This Kit?

Corrosion Resistance: All components made from marine-grade 316 stainless steel to handle saltwater exposure and humid climates.
Long-Term Performance: Integrated grease fitting and lock washer prevent mechanical wear and loosening over time.
Ready to Install: No need to buy additional hardware—everything you need is included in the box.

Matching Components

• Need a Sheave? Our 4" Aluminum Sheave with Oilite Bronze Bushing is a perfect match for this axle bolt kit—engineered for smooth cable guidance and long life.
• Also Available: Drive Pipe Cable Attachment Bolts – ideal for anchoring cable loops or drive pipe interfaces in boat lift systems.

Order Yours Today!

Upgrade your boat lift or dock setup with this complete 3/4"-10 x 3-1/2" Axle Bolt Kit. With built-in lubrication and marine-grade durability, it’s the go-to solution for pros and serious DIYers. Order now and enjoy fast shipping and expert support from Monster Bolts.

✔️ Trusted by marine and industrial professionals

✔️ Built for long-term exposure to water and extreme conditions