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Alloy Steel Low Head Socket Cap Screws

Alloy steel low head socket cap screws are designed for fastening applications where overhead clearance is limited and a standard socket head would project too far above the mounting surface. Their reduced head height provides a lower-profile installation while retaining an internal hex drive for controlled installation with a hex key.

These fasteners are commonly used in robotics, automation equipment, machine guarding, tooling, inspection fixtures, conveyor systems, packaging machinery, compact mechanical assemblies, access panels, and repair applications where space around the screw head is restricted. The cylindrical low head is especially useful near moving components, adjacent panels, housings, rails, brackets, and other areas where head clearance can affect assembly design.

Cold Headers supplies alloy steel low head socket cap screws in a range of inch thread sizes and lengths, including uncommon and difficult-to-source configurations. Individual product pages provide exact thread size, length, body diameter, head diameter, head height, hex socket size, and verified key-engagement information where available. Use those dimensional specifications to confirm compatibility with the tapped hole, counterbore, surrounding components, and installation tooling.

Why Use a Low Head Socket Cap Screw?

  • Reduced head height: Supports installations with limited space above the fastener.
  • Internal hex drive: Allows installation where external wrench clearance is restricted.
  • Compact cylindrical geometry: Helps reduce interference with nearby components and moving assemblies.
  • Application flexibility: Suitable for machinery, fixtures, guards, brackets, panels, tooling, and maintenance repairs.
  • Exact-size selection: Available product pages allow engineers and purchasers to compare thread, length, head, socket, and body dimensions.

Selecting the Correct Low Head Socket Cap Screw

Begin by confirming the required thread size and screw length. Then review the head diameter and head height to make sure the screw fits within the available installation envelope. The hex socket size should match the intended installation tool, while the body diameter and minimum key engagement can help evaluate fit and drive access. Low head socket cap screws should be selected according to the requirements of the assembly rather than substituted automatically for standard socket head cap screws.

Cold Headers Inc. has supplied specialty industrial socket fasteners since 1962. Our catalog is organized to help engineers, distributors, maintenance teams, and purchasing professionals locate exact sizes, uncommon lengths, and specialty socket products without relying on broad or unsupported inventory claims.

Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.

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Unit of Measure
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Item #

Item Name

Diameter

Length

Material

Quantity

List Price (per 100 pieces)

LHCS-AS 1/4-28 x 1 1/2 N/A 1/4-28 x 1 1/2 Alloy Steel Low Head Socket Cap Screw N/A 1/4-28 N/A 1 1/2 in N/A Alloy Steel N/A 100 $60.00
LHCS-AS 1/4-28 x 1 3/4 N/A 1/4-28 x 1 3/4 Alloy Steel Low Head Socket Cap Screw N/A 1/4-28 N/A 1 3/4 in N/A Alloy Steel N/A 100 $89.00
LHCS-AS 1/4-28 x 2 N/A 1/4-28 x 2 Alloy Steel Low Head Socket Cap Screw N/A 1/4-28 N/A 2 in N/A Alloy Steel N/A 100 $90.00
LHCS-AS 5/16-18 x 1/4 N/A 5/16-18 x 1/4 Alloy Steel Low Head Socket Cap Screw N/A 5/16-18 N/A 1/4 in N/A Alloy Steel N/A 100 Call or Email for Pricing
LHCS-AS 5/16-18 x 5/16 N/A 5/16-18 x 5/16 Alloy Steel Low Head Socket Cap Screw N/A 5/16-18 N/A 5/16 in N/A Alloy Steel N/A 100 Call or Email for Pricing
LHCS-AS 5/16-18 x 3/8 N/A 5/16-18 x 3/8 Alloy Steel Low Head Socket Cap Screw N/A 5/16-18 N/A 3/8 in N/A Alloy Steel N/A 100 $16.00
LHCS-AS 5/16-18 x 7/16 N/A 5/16-18 x 7/16 Alloy Steel Low Head Socket Cap Screw N/A 5/16-18 N/A 7/16 in N/A Alloy Steel N/A 100 Call or Email for Pricing
LHCS-AS 5/16-18 x 1/2 N/A 5/16-18 x 1/2 Alloy Steel Low Head Socket Cap Screw N/A 5/16-18 N/A 1/2 in N/A Alloy Steel N/A 100 $14.00
LHCS-AS 5/16-18 x 5/8 N/A 5/16-18 x 5/8 Alloy Steel Low Head Socket Cap Screw N/A 5/16-18 N/A 5/8 in N/A Alloy Steel N/A 100 $14.25
LHCS-AS 5/16-18 x 3/4 N/A 5/16-18 x 3/4 Alloy Steel Low Head Socket Cap Screw N/A 5/16-18 N/A 3/4 in N/A Alloy Steel N/A 100 $14.50
LHCS-AS 5/16-18 x 7/8 N/A 5/16-18 x 7/8 Alloy Steel Low Head Socket Cap Screw N/A 5/16-18 N/A 7/8 in N/A Alloy Steel N/A 100 $17.25
LHCS-AS 5/16-18 x 1 N/A 5/16-18 x 1 Alloy Steel Low Head Socket Cap Screw N/A 5/16-18 N/A 1 in N/A Alloy Steel N/A 100 $17.50
LHCS-AS 5/16-18 x 1 1/4 N/A 5/16-18 x 1 1/4 Alloy Steel Low Head Socket Cap Screw N/A 5/16-18 N/A 1 1/4 in N/A Alloy Steel N/A 100 $21.00
LHCS-AS 5/16-18 x 1 1/2 N/A 5/16-18 x 1 1/2 Alloy Steel Low Head Socket Cap Screw N/A 5/16-18 N/A 1 1/2 in N/A Alloy Steel N/A 100 $22.50
LHCS-AS 5/16-18 x 1 3/4 N/A 5/16-18 x 1 3/4 Alloy Steel Low Head Socket Cap Screw N/A 5/16-18 N/A 1 3/4 in N/A Alloy Steel N/A 100 $44.00
LHCS-AS 5/16-18 x 2 N/A 5/16-18 x 2 Alloy Steel Low Head Socket Cap Screw N/A 5/16-18 N/A 2 in N/A Alloy Steel N/A 100 $45.00
LHCS-AS 5/16-24 x 1/4 N/A 5/16-24 x 1/4 Alloy Steel Low Head Socket Cap Screw N/A 5/16-24 N/A 1/4 in N/A Alloy Steel N/A 100 Call or Email for Pricing
LHCS-AS 5/16-24 x 5/16 N/A 5/16-24 x 5/16 Alloy Steel Low Head Socket Cap Screw N/A 5/16-24 N/A 5/16 in N/A Alloy Steel N/A 100 Call or Email for Pricing
LHCS-AS 5/16-24 x 3/8 N/A 5/16-24 x 3/8 Alloy Steel Low Head Socket Cap Screw N/A 5/16-24 N/A 3/8 in N/A Alloy Steel N/A 100 $55.00
LHCS-AS 5/16-24 x 7/16 N/A 5/16-24 x 7/16 Alloy Steel Low Head Socket Cap Screw N/A 5/16-24 N/A 7/16 in N/A Alloy Steel N/A 100 Call or Email for Pricing
LHCS-AS 5/16-24 x 1/2 N/A 5/16-24 x 1/2 Alloy Steel Low Head Socket Cap Screw N/A 5/16-24 N/A 1/2 in N/A Alloy Steel N/A 100 $41.00
LHCS-AS 5/16-24 x 5/8 N/A 5/16-24 x 5/8 Alloy Steel Low Head Socket Cap Screw N/A 5/16-24 N/A 5/8 in N/A Alloy Steel N/A 100 $42.00
LHCS-AS 5/16-24 x 3/4 N/A 5/16-24 x 3/4 Alloy Steel Low Head Socket Cap Screw N/A 5/16-24 N/A 3/4 in N/A Alloy Steel N/A 100 $55.00
LHCS-AS 5/16-24 x 7/8 N/A 5/16-24 x 7/8 Alloy Steel Low Head Socket Cap Screw N/A 5/16-24 N/A 7/8 in N/A Alloy Steel N/A 100 $56.00
LHCS-AS 5/16-24 x 1 N/A 5/16-24 x 1 Alloy Steel Low Head Socket Cap Screw N/A 5/16-24 N/A 1 in N/A Alloy Steel N/A 100 $60.00
Unit of Measure
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