머리 스타일
팬, 트러스, 플랫, 타원형, 라운드, 헥스 키, 치즈
Material
carbon steel hardened, SUS304, SUD316
Finish
Passivation, blue zinc, white zinc, black zinc, black oxide
Head type
pan, pan washer, flat head, oval head
Drive type
Phillips Cross Recess, torx drive, hex drive
Thread
M2M2.2M2.5M3M3.5M4M5M6M7