FASTENER IDENTIFICATION GUIDE

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INSTRUCTIONS FOR <strong>IDENTIFICATION</strong> FOR BOLTS AND STUDS SPECIFICATION AND MATERIAL CODES ASTM A 325 Type 1 Heavy Series . 65501 Galv. 67616 Dual Ring: (same as above) Round Countersunk: (same as above) Torque: 65505 ASTM A 325 Type 2 Heavy Series 65502 Galv. 67616 ASTM A 325 Type 3 Heavy Series 65503 Galv. 67650 Torque: (same as above) Round Countersunk: (same as above) ASTM A 449 Regular Series 67617M Galv. 67618M ASTM A 490 Type 1 Heavy Series 67619 Galv. 67620 Typical: Hex Galv.--67643 Hex Alum.--77601 GRADE MARKING A325 X A325 X A325 X A325 X X A490 X Round Glav.--67631 Round Alum.--77602 REQUIRED MARKINGS Symbol for identification of grade, i.e., “A325”, applied to head. Manufacture’s identification mark, e.g., “X”, applied to head (raised or depressed at option of manufacturer). Three radial lines applied to head 120 degrees apart (at option of the manufacturer). Symbol for identification of grade, i.e., “325”, applied to head. Manufacturer’s identification mark, e.g., “X”, Applied to head (raised or depressed at option of the manufacturer). Three radial lines applied to head 60 degrees apart. Symbol for identification of grade, i.e., “325”, applied to head. Line stamped under “A325”. Manufacturer’s identification mark, e.g., “X”, Applied to head (raised or depressed at option of the manufacturer). Other distinguishing marks applied to head indicating bolt is atmospheric corrosion resistant and of a weathering type (at option of manufacturer). Manufacturer’s identification mark, e.g., “X”, Applied to head (raised or depressed at option of the manufacturer). Three radial lines applied to head 120 degrees apart. Symbol for identification of grade, i.e., “490”, applied to head. Manufacture’s identification mark, e.g., “X”, applied to head (raised or depressed at option of manufacturer). Stainless Steel--67604 Shear Connector Stud--65801
INSTRUCTIONS FOR <strong>IDENTIFICATION</strong> FOR BOLTS AND STUDS SPECIFICATION AND MATERIAL CODES ASTM A 490 Type 2 Heavy Series . ASTM A 490 Type 3 Heavy Series Typical: Hex Galv.--67643 Hex Alum.--77601 GRADE MARKING A490 X A490 X Round Glav.--67631 Round Alum.--77602 REQUIRED MARKINGS Symbol for identification of grade, i.e., “A490”, applied to head. Manufacture’s identification mark, e.g., “X”, applied to head (raised or depressed at option of manufacturer). Six radial lines applied to head 30 degrees apart. Symbol for identification of grade, i.e., “490”, applied to head. Line Stamped under “A 490”. Manufacturer’s identification mark, e.g., “X”, Applied to head (raised or depressed at option of the manufacturer). Stainless Steel--67604 Shear Connector Stud--65801
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