Package Included: 1/4-20 x 1" (10 PCS), 1-1/2" (8 PCS), 2" (6 PCS), stored in an easy-use and durable plastic box.
Head Style: Button Head; Allen Hex Drive Size: 5/32" ( 0.156")
Thread Diameter: 1/4"; Head Diameter: 7/16"; Head Height: 1/8"; Thread Pitch: 20 TPI
Exterior Finish: Bright Finish; Color: Silver Tone; Thread Style: Right Hand
Made of stainless steel 304 (no coating outside) which is superior to regular steel and any zinc plated fasteners, provides good strength and corrosion resistance in bad environments.