Flexible Shipping
Machrio
AccountCart is empty
Zinc-Plated Carbon Steel Cotter Pin, 0.315" x 4.33", Pkg Qty 100

Hover to zoom

Industrial · SKU: AA6135863

Zinc-Plated Carbon Steel Cotter Pin, 0.315" x 4.33", Pkg Qty 100 (315X4)

This zinc-plated carbon steel cotter pin provides a reliable, removable fastening solution for industrial and agricultural applications. It features a 0.

Contact for Availability
$99.99
$1.00/each(100 pcs/pkg)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 10-$99.99
11 - 50-5%$94.99
51+-10%$89.99
Request Quote

Free Shipping $200+

On qualifying orders

Fast DDP Delivery

Door-to-door service

24/7 Support

Expert assistance

Quick Answer

How Buyers Should Evaluate Zinc-Plated Carbon Steel Cotter Pin, 0.315" x 4.33", Pkg Qty 100 (315X4)

This zinc-plated carbon steel cotter pin provides a reliable, removable fastening solution for industrial and agricultural applications. It features a 0. Use the quick checks below to decide whether direct checkout is enough or whether an RFQ will reduce sourcing risk.

Quick Spec Check

  • System of Measurement: Metric
  • Material Grade/Class: 38-45HRC
  • Material: Carbon Steel

Purchase Details

  • Online price starts at $99.99.
  • Minimum order quantity: 1 unit.
  • Pack quantity: 100 / Each.
  • Lead time: 2-3 weeks.

Use RFQ When

  • Use RFQ when you need bulk pricing, alternate pack sizes, or multi-SKU comparison.
  • Request support when fit, material, or substitute selection needs confirmation before order.
  • Escalate to sourcing when timeline, freight, or stocking strategy matters more than one-off checkout speed.

Technical Specifications

System of MeasurementMetric
Material Grade/Class38-45HRC
MaterialCarbon Steel
Thread SizeNone
FinishZinc Plated
Pin Diameter0.315 in
Length4.33 in
Product Details

Full Description

Application context, construction notes, and selection details for evaluating fit before purchase or repeat ordering.

Overview

This zinc-plated carbon steel cotter pin is engineered for heavy-duty industrial, agricultural, and machinery applications where a secure yet removable fastening method is critical. It serves as a fundamental safety component, preventing pins, bolts, and axles from backing out of assemblies under vibration and load. The combination of hardened carbon steel and a protective zinc finish ensures dependable performance and longevity in demanding operational environments.

Key Features

Constructed from hardened carbon steel for superior shear strength and durability. Zinc-plated finish provides a protective layer against rust and corrosion. Standard 60-degree prong spread for a secure, positive lock after installation. Designed for easy installation and removal with standard hand tools. Sold in a bulk package for cost-effective inventory and job site supply.

Specifications

Material: Carbon Steel Material Hardness: 38-45 HRC Finish: Zinc Plated Pin Diameter: 0.315 inches Overall Length: 4.33 inches Thread Size: None System of Measurement: Metric-derived dimensions Package Quantity: 100 units

Applications

Securing hitch pins and clevis pins on agricultural implements. Locking castellated nuts on axle assemblies and king pins. General maintenance and safety wiring in industrial machinery. Marine and transportation equipment requiring reliable pinned connections. Construction equipment and ground-engaging tools.

Frequently Asked Questions

What are the exact specifications and material properties of this cotter pin?
This is a zinc-plated carbon steel cotter pin with a diameter of 0.315 inches and a length of 4.33 inches. The carbon steel is heat-treated to a hardness of 38-45 HRC, providing high strength and durability, while the zinc plating offers corrosion resistance.
What are the typical applications or use cases for this size of cotter pin?
This 0.315" x 4.33" cotter pin is commonly used to secure clevis pins, axle nuts, castle nuts, and other fasteners in machinery, agricultural equipment, and automotive applications. Its size is suitable for use with pins or bolts that have a 5/16-inch (0.3125") diameter hole.
How is this product packaged, and what is the minimum order quantity?
This cotter pin is sold in a bulk package containing 100 pieces. The pins are typically packaged in a poly bag or small box for convenient storage and inventory management in a workshop or maintenance setting.