半圆沉头螺栓
half round countersunk head bolt
沉头带榫螺栓
Flat countersunk nib bolts
沉头方颈螺栓
countersunk square neck bolt
Flat countersunk square neck bolts
沉头双榫螺栓
Flat countersunk double nib bolts
半沉头螺钉
raised countersunk head screw
oval head screw
沉头螺钉
Countersunk fastener
flat(countersunk)head screw
Screw-oval head
sunk screw
开槽半沉头螺钉
slotted raised countersunk (oval) head screw
开槽沉头螺钉
slotted countersunk (flat) head screw
内六角沉头螺钉
hexagon socket countersunk head cap head screw
十字槽沉头螺钉
cross recessed countersunk head screw
白铁圆头螺栓
galvanized iron mushroom head bolt
半光埋头螺栓
semifinished countersunk head bolt