WELD NUTS Weld nuts are projection welded directly on the sheet metal parts to be assembled. These nuts permit Blind Assembly and other components. Thus it can be applied in High Speed production methods on Automatic Welding Machines. PRODUCT RANGE : SQUARE Specification Size Range Finishes Available Metric JIS M 5 to M 10 HEXAGON Specification Thread Size Range DIN 929 Metric / Unified M 5 to M 10