WAluminium foam sandwich
WAnvil
WBagh nakh
WBrass fastener
WBullion
WCaltrop
WChain shot
WDrill bit
WFishplate
WGrease fitting
WHorse brass
WIngot
WMetal foam
WMetal hose
WNail (fastener)
WRasalingam
WSlug (coin)
WSplit pin
WStaple (fastener)
WSteel and tin cans
WWrench