bolting lug
1Mossberg 500 — Type Shotgun Place of origin …
2Screw — This article is about the fastener. For other uses, see Screw (disambiguation). Screws come in a variety of shapes and sizes for different purposes. U.S. quarter coin (diameter 24 mm) shown for scale. A screw, or bolt, is a type of fastener… …
3Hubcap — For other uses, see Hubcap (disambiguation). A threaded brass hubcap on a cartwheel with artillery style hub …
