50Pcs Flat Head Socket Cap Screws-[#4-40x1/4"], 304 Stainless Bolts Black

APPLICATION:
-This flat-head hex socket screw is widely applicable for furniture assembly, vehicle maintenance, machinery debugging, and other scenarios requiring a flush mounting surface.

ABOUT THIS PRODUCTS/FEATURES:
-The screw head features an internal hexagon combined with a countersunk design. The internal hex socket structure, when paired with a standard hex wrench, efficiently transmits torque, reduces slippage, and enhances installation precision and efficiency.

SPECIFICATION:
Quantity: 50Pcs
Specifications: #4-40 x 1/4"mm
Thread Diameter: #4
Screw Length: 1/4"
Thread Pitch: 40PTI
Head Diameter: 0.26inch(6mm)
Hexagon Socket Width (Diagonal Width): 1/16"
Material: 304 Stainless Steel
Color: Black
Surface Treatment: Black Oxide

TAKE NOTICE OF/TIPS:
-For connections subjected to prolonged vibration, a regular inspection schedule should be established to ensure no signs of loosening are present.