3/8"-16 x 1-1/4" Stainless Steel Fully-Threaded Hex Cap Bolt (Pack of 100)

The perfect middle-ground length for most builds. These 3/8"-16 x 1-1/4" stainless steel fully-threaded hex cap bolts deliver strong clamping force with full thread engagement—ideal for brackets, strut hardware, enclosures, mounts, and general construction where a 1" bolt is short and 1-1/2" is overkill. 100-pack for jobsite efficiency.

If you’re standardizing hardware across builds, 3/8"-16 x 1-1/4" fully-threaded stainless hex cap bolts are one of the most versatile fasteners you can stock. The extra reach over a 1" bolt gives flexibility for washers, spacers, and thicker materials, while full-length threading ensures solid engagement and adjustability.

Common applications include:

• Brackets, plates, angles, and mounting tabs

• Strut/channel hardware and equipment mounts

• Electrical and telecom enclosures, racks, and supports

• Outdoor installs and service work where corrosion resistance matters

Pro tip: Match with stainless 3/8"-16 nuts and washers to maintain consistent corrosion resistance across the assembly.

Specifications:

• Diameter / Thread: 3/8"-16 (UNC / coarse)

• Length: 1-1/4"

• Threading: Fully threaded

• Head type: Hex head

• Material: Stainless steel

• Package quantity: 100 bolts

• Finish: Stainless (natural)

• Applications: General fastening, indoor/outdoor assemblies