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25 black oxide alloy steel socket head cap screws in a pack

Kerr Lakeside

Kerr Lakeside 3/4-10 x 4-1/2 In. Socket Head Cap Screw Alloy Steel Black Oxide 25 Pack

SKU CH-C9BJ-QM7ZP

Alloy steel socket head cap screws with black oxide finish, 3/4-10 UNC thread, 4-1/2 inch length, 25 pack

  • Product typeSocket
  • Main materialHAWA
  • Alloy steel construction delivers high tensile strength for demanding fastening tasks
  • Black oxide finish provides corrosion resistance in harsh environments
  • Hex socket drive allows secure installation with 5/8 in. wrench
  • UNC coarse threading ensures reliable grip in threaded holes
  • 25-piece pack supplies ample hardware for multiple projects

Kerr Lakeside 3/4-10 Socket Head Cap Screws

This pack contains 25 alloy steel socket head cap screws with a 3/4-10 UNC coarse thread and a length of 4-1/2 inches. The black oxide finish provides mild corrosion resistance. A 5/8 inch hex socket drive allows for secure installation in machinery and automotive applications.

Replacing Worn or Stripped Fasteners

Use these screws to replace damaged hardware where a 3/4 inch diameter and 10 threads per inch are specified. The partially threaded design with a minimum thread length of 2 inches suits applications requiring grip length beyond the threads. The jump is worth it when existing fasteners show corrosion or rounding of the hex drive.

Build Integration Requirements

These fasteners require a 5/8 inch hex key or bit for driving. The cylindrical head height measures .75 inches, so ensure adequate clearance above the mounting surface. The right-hand thread direction follows standard convention. They free up supply chain complexity by providing 25 pieces in a single pack for maintenance inventory.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $72.99
Pricier than about 76% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameKerr Lakeside
Product typeSocket
Size & build
Main materialHAWA

Questions about this item

What size hex key is required for the 5/8 in. drive socket head?

A 5/8 in. hex key or bit fits the internal drive on these socket head cap screws.

How deep must the tapped hole be for the 2 in. minimum thread length?

The hole should provide at least 2 in. of full thread engagement so the partially threaded shank seats properly.

Will the black oxide finish require re-coating in corrosive environments?

Black oxide offers limited corrosion resistance; a supplemental oil or wax coating is recommended for ongoing protection.

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