1). Standard: ASTM F436 washer, F436M washer, DIN6916 washer, AS1252
2). Material: Carbon steel, alloy steel, stainless steel, etc.
3). Surface: Black, ZP, ZY, etc.
4). Packaging: 25kgs per box, 36 boxes per pallet
- Country: China (Mainland)
- Contact: jessies xu