We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Box of 100 black oxide alloy steel socket cap screws, 1/4-20 by 2 inch

Kerr Lakeside

Kerr Lakeside 25C200KCS 1/4-20 x 2 in. Socket Cap Screw, 100 Pieces

SKU CH-4R40-2470C

A pack of 100 alloy-steel 1/4-20 x 2 in. socket cap screws with black oxide finish, partial thread and 180,000 psi tensile strength

  • 1/4-20 x 2 in. socket cap screw for secure fastening
  • Alloy steel with black oxide finish resists corrosion
  • Rockwell hardness Rc 38-43 ensures durability under load
  • 180,000 PSI tensile strength handles high-stress applications
  • 100-piece pack supplies volume for production or maintenance

Professional fastening solution

Kerr Lakeside socket cap screws provide 100 pieces of alloy steel hardware for structural assembly. Each fastener meets ASTM A574 and ANSI B18.3 standards with RoHS compliance. The black oxide finish resists corrosion while maintaining dimensional accuracy. Designed for mechanics and fabricators who require consistent clamping force in inch-based designs.

Hex drive integration

The hex drive design accepts standard Allen keys for reliable torque transfer without cam-out. Coarse UNC threads with right-hand orientation engage quickly in tapped holes or nuts. Partial thread length of 1 in. leaves an unthreaded shank for shear resistance. Builders needing fine-pitch threads or fully threaded lengths must select a different fastener.

Sustained load reliability

Rockwell hardness of RC 38-43 supports the rated tensile strength of 180000 psi under continuous tension. Alloy steel construction resists stretching when subjected to vibration or thermal cycling. The 2.93 lb pack contains 2 in. overall length screws with 3.25 x 4.19 x 3.13 in. packaging dimensions. Applications exceeding the partial thread engagement depth require alternative hardware.

How it compares

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

Price $27.99
Typical for this category: the median of 5,493 items is $27.99.

Specifications

Product
Brand nameProspect Fastener

Questions about this item

How deep can the 1 in. thread length engage before the shank hits the hole?

The partial thread extends 1 in. from the tip, so full thread engagement stops at that depth; the remaining 1 in. of shank is unthreaded.

How much does the 100-piece pack weigh when handled all day?

The box weighs 2.93 lbs, so repeated lifting adds roughly 3 lbs of load.

What drive bit fits the hex socket head?

A standard hex (Allen) bit matching the 1/4 in. cap screw head is required.

More in Bits, Hole Saws & Accessory Kits

Similar items