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Description / Abstract:
This Standard covers the complete general and dimensional data
for products in the metric series recognized as American National
Standard for sizes M12 through M36. These four metric structural
products include
(a) metric heavy hex structural bolts: ASTM A325M and
ASTM A490M
(b) metric heavy hex nuts: ASTM A563M
(c) metric hardened steel washers; circular, circular
clipped, and beveled: ASTM F436M
(d) metric compressible washer-type direct tension
indicators: ASTM F959M
The inclusion of dimensional data in this Standard is not
intended to imply that all products described herein are stock
production sizes. Consumers should consult with suppliers
concerning lists of available stock production sizes.