5/16-18 x 1 3/4 Alloy Steel Low Head Socket Cap Screw helps engineers keep a compact profile in assemblies where overhead clearance is limited. The internal hex drive keeps tool engagement within the head, which is useful when machinery leaves limited overhead or side clearance.

Engineers often specify this configuration for fixture construction and precision tooling, where the lower profile can reduce interference with clamps, slides, or locating features. The same low-head geometry works in maintenance work and machinery repair, where the exact size helps buyers match drawings, repair lists, and installed hardware. The verified head diameter, head height, and hex key size below help purchasing teams confirm fit before quoting or ordering.

The reduced head height is intended for clearance-sensitive assemblies where a taller fastener head could interfere with covers, guards, slides, or adjacent machine components.

Technical Highlights

• Material: Alloy Steel
• Thread Size: 5/16-18
• Length: 1 3/4 in.
• Basic Diameter: 0.312 in.
• Head Diameter: 0.431-0.437 in.
• Head Height: 0.152-0.158 in.
• Hex Socket Size: 5/32 in.
• Minimum Key Engagement: 0.110 in.
• Drive Type: Internal Hex

Reference dimensions may vary slightly by manufacturer.

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