Sems Screws feature being pre-assembled with a free-spinning lock washer. They are commonly used in many applications by saving assembly time and preventing loosening from vibration.
FYFasteners provides all the standard sizes in most ASTM, SAE and DIN specifications, including nonstandard dimensions.
|Standard||ASME/ANSI, DIN, ISO, JIS, BS standard/non-standard sizes|
|Material||Carbon Steel, 1022+heat treatment, stainless steel etc|
|Head type||Flat CSK, pan, truss, hex, round, cheese, oval etc|
|Drive type||Phill, cross recess, torx, square, slotted etc|
|Finish||(Clear/ yellow/ blue) zinc plated, black/grey phosphate etc|
|Package||Bulk in cartons+ wood solid pallet or custom packing|
|Delivery time||Flexible upon order qty, normally within 30-40 days|
|Payment||T/T, L/C , Western Union etc|
|Trade term||FOB, CIF, CFR, EXW, DDP, DDU etc|