astm a325 and a490 flat washers washers grainger

12345NextASTM A325 and A490 Flat Washers Astm a490 bolts Manufacturers Suppliers,China astm a490

HDG ASTM F3125 A325 A490 A449 A490,A490m High Strength Heavy Hex Structural Bolt Inquiry Basket ASTM A325/ A490 M16-M30 1/2-1 1/8 Torshear Type Round Head Bolt

China Plain Finish Direct Tension Indicator Washers

76161000.Product Description.Plain Finish Direct Tension Indicator Washers.Squirter Washers.Direct Tension Indicator washers provide a positive,visible method of assuring structural bolts are tightened to the required compression.The convex ridges that face up house small pockets of bright orange silicone on the bottom side.HDG or Galvanized Heavy Hex Bolts/Steel Structure Bolts The ASTM A490 specification covers quenched and tempered,alloy steel,heavy hex structural bolts from 1/2 diameter through 1-1/2 diameter with a minimum 150 ksi tensile.A490 bolts are similar in application and dimensions to A325 Hex Cap Screws heavy hex structural bolts but are made from an alloy steel rather than a medium carbon steel

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