1-3/8-12 X 5-1/2" Socket Cap Screws | Hex Socket Drive | Alloy Steel

Socket Head Cap Screws Alloy Steel 1-3/8-12 X 5-1/2 are high-strength fasteners designed for rigid machine assemblies and demanding industrial use. The 1-3/8-12 size denotes a large-diameter, fine-pitched thread paired with a 5-1/2 inch long shank, providing secure clamping and reliable torque transfer in precision equipment.

Constructed from alloy steel, these socket head cap screws deliver exceptional strength, durability, and fatigue resistance under load. The flush, low-profile head profile allows for compact assemblies and clean tool access, making them ideal for applications where space is at a premium and performance is non-negotiable.