Best Choice [3000 BULK] Flange Bolts Serrated Hex Washer Case Hardened Steel Black Oxide 1/4-20 X 1/2

[3000 BULK] Flange Bolts Serrated Hex Washer Case Hardened Steel Black Oxide 1/4-20 X 1/2 — a bulk-pack fastener designed for strength, reliability, and fast installation. These flange bolts feature a built-in serrated hex washer, case-hardened steel construction, and a durable black oxide finish for corrosion resistance.

Overview

Engineered for high-load applications, these flange bolts provide a secure, flush seating with enhanced load distribution. The serrated hex washer helps prevent loosening, while the black oxide finish offers additional protection against rust in typical workshop environments.

Key Features

Size & thread: 1/4-20 thread, 1/2 inch long

Material & finish: Case-hardened steel with black oxide finish

Flange & washer: Built-in serrated hex washer for a secure grip and even load distribution

Head type: Hex-drive flange bolt

Quantity: Bulk pack of 3,000 bolts

Applications: Ideal for automotive, machinery, equipment assemblies, and general manufacturing

Specifications

Diameter: 1/4 inch

Thread: 1/4-20

Length: 1/2 inch

Finish: Black oxide

Material: Case-hardened steel

Pack quantity: 3,000 pieces

Why Choose These Flange Bolts

Designed to endure demanding environments, these flange bolts deliver reliable performance with enhanced pull-out resistance and vibration resistance. The combination of case-hardened steel and black oxide finish ensures lasting durability, while the serrated hex washer promotes a secure, locking fit during installation.

Ideal Uses

Use these flange bolts for automotive assemblies, machinery mounting, equipment fixtures, and any project requiring a strong, corrosion-resistant fastener with a built-in washer for quick, secure installation.