JX-DIN251-M8-ST

Alloy Steel Tamper-Resistant Flange Socket Hexagon Head  Screws. Made from alloy steel, these screws are nearly twice as strong as stainless steel button head screws. Their tamper-resistant Flange Socket Hexagon drive (also known as a pin-in Flange Socket Hexagondrive) makes them difficult to remove without special tools. For installation tools, see tamper-resistant Flange Socket Hexagon drivers and bits. Length is measured from under the head.Serrations under the head grip the material's surface for mild vibration resistance, and the flange distributes pressure, eliminating the need for a separate washer. With a tensile strength of 140,000 psi, these alloy steel screws are comparable in strength to Grade 8 steel screws and are stronger than stainless steel screws. Their black-oxide finish provides mild corrosion resistance in dry environments. Head height includes the flange. Length is measured from under the flange.

Size Can also be According to the Customer's requirement for manufacturing， please check the detailed specification sheet details PDF, CAD, 211-212Page See more product details.

Packaging: The inner packaging is a plastic bag, and the outer packaging is a carton. Then the tray. Carton size: 29*19*19.5cm and 23.5*17.5*8cm and pallet size: 215*100*90cm, or as your request