D3 UDC 621.882.211 DIN 931*PT*1 87 • 279444b 0023749 4 • DEUTSCHE NORM September 1987 • -� E� � a z � > • " �o " - �� " a zS - a" 0 oo " o - - E o � " a- � 0" a• 0 0 Eg , " oE � e( a f , • 0 E� 0 � " "0 - . • M 1,6 to M 39 hexagon head bolts Product grades A and B DIN 931 Part 1 Sechskantschrauben mit Schatt; Gewinde M 1,6 bis M 39; Produktklassen A und B This standard, together with DIN ISO 4014, September 1987 edition, supersedes the December 1982 edition. This standard should be used together with ISO 4014. For details, see Explanatory notes. It is intended to withdraw the present standard by 1 July 1992 at the latest. In keeping with current practice in standards pubshed by the Inteational Organization for Standardization (ISO), a comma has been used throughout as the decimal marker. Dimensions in mm 1 Field of application This standard specifies requirements for M 1,6 to M 36 hexagon head bolts assigned to product grade A for thread sizes up to and including M 24 and lengths smaller than 10 d or 150 m, and assigned to product grade B for thread sizes above M24 or lengths exceeding 10d or 150mm . If, in special cases, bolts are to comply with specifications other than those given in this standard, e.g. regarding nominal lengths, these shall be selected in accordance with the appropriate standard. 2 Dimensions C k k' Reference line for d w X DIN 78·- K thread end, also permitted without chamfered end for sizes smaller than M 4 . u s (bl u = maximum of 2P incomplete thread . k' = minimum wrenching height (0,7 k min.). Beuth Verlag GmbH, Berlin, has the exclusive right of sale for German Standards (DIN-Normen). 10.87 Continued on pages 2 to 7 DIN 931 Pa 1 Engl. Price group 7 Sales No. 0107 Copyright by the DIN eutsches lnstitut f'ur Normung f: V on Mar 04 12:58:45 201 :1

DIN D3 UDC 621.882.211 DIN M 1,6 to M 39 hexagon head

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D3 UDC 621.882.211

DIN 931*PT*1 87 • 279444b 0023749 4 •

DEUTSCHE NORM September 1987

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M 1,6 to M 39 hexagon head bolts Product grades A and B

DIN

931 Part 1

Sechskantschrauben mit Schatt; Gewinde M 1,6 bis M 39; Produktklassen A und B

This standard, together with DIN ISO 4014, September 1987 edition, supersedes the December 1982 edition.

This standard should be used together with ISO 4014. For details, see Explanatory notes. It is intended to withdraw the present standard by 1 July 1992 at the latest.

In keeping with current practice in standards published by the International Organization for Standardization (ISO), a comma has been used throughout as the decimal marker.

Dimensions in mm

1 Field of application

This standard specifies requirements for M 1,6 to M 36 hexagon head bolts assigned to product grade A for thread sizes up to and including M 24 and lengths smaller than 10 d or 150 inm, and assigned to product grade B for thread sizes above M24 or lengths exceeding 10d or 150mm .

If, in special cases, bolts are to comply with specifications other than those given in this standard, e.g. regarding nominal lengths, these shall be selected in accordance with the appropriate standard.

2 Dimensions

Reference line for d

DIN 78·- K thread end, also permitted without chamfered end for sizes smaller than M 4 .

u s

(bl

u = maximum of 2P incomplete thread .

k' = minimum wrenching height (0,7 k min.).

Beuth Verlag GmbH, Berlin, has the exclusive right of sale for German Standards (DIN-Normen). 10.87

Continued on pages 2 to 7

DIN 931 Part 1 Engl. Price group 7 Sales No. 0107

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