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Standardized Sockets for Screws for Bolts
These standards from ISO and SAE cover standardized screw socket requirements sorted by head.
Back to fastener standards for screws, bolts, and studs Home
Hex Socket
Hexalobular Socket
Cross Socket
Slotted Socket
Hex Socket
ISO 8676:2011
Hexagon head screws with metric fine pitch thread - Product grades A and B
ISO 10642:2019
Fasteners - Hexagon socket countersunk head screws with reduced loadability
ISO 10642/Amd1:2012
Hexagon socket countersunk head screws - Amendment 1
ISO 12474:2010
Hexagon socket head cap screws with metric fine pitch thread
ISO 4026:2003
Hexagon socket set screws with flat point
ISO 4027:2003
Hexagon socket set screws with cone point
ISO 4028:2003
Hexagon socket set screws with dog point
ISO 4029:2003
Hexagon socket set screws with cup point
ISO 4762:2004
Hexagon socket head cap screws
ISO 7379:1983
Hexagon socket head shoulder screws
ISO 7380-1:2011
Button head screws - Part 1: Hexagon socket button head screws
ISO 7380-2:2011
Button head screws - Part 2: Hexagon socket button head screws with collar
Hexalobular Socket
ISO 10664:2014
Hexalobular internal driving feature for bolts and screws
ISO 14579:2011
Hexalobular socket head cap screws
ISO 14580:2011
Hexalobular socket cheese head screws
ISO 14583:2011
Hexalobular socket pan head screws
ISO 14584:2011
Hexalobular socket raised countersunk head screws
ISO 14585:2011
Hexalobular socket pan head tapping screws
ISO 14586:2011
Hexalobular socket countersunk head tapping screws
ISO 14587:2011
Hexalobular socket raised countersunk (oval) head tapping screws
Cross Socket
ISO 4757:1983
Cross recesses for screws
ISO 7048:2011
Cross-recessed cheese head screws
ISO 7046-1:2011
Countersunk flat head screws (common head style) with type H or type Z cross recess - Product grade A - Part 1: Steel screws of property class 4.8
ISO 7046-2:2011
Countersunk flat head screws (common head style) with type H or type Z cross recess - Product grade A - Part 2: Steel screws of property class 8.8, stainless steel screws and non-ferrous metal screws
ISO 7047:2011
Raised countersunk head screws (common head style) with type H or type Z cross recess - Product grade A
ISO 15481:1999
Cross recessed pan head drilling screws with tapping screw thread
ISO 7049:2011
Cross-recessed pan head tapping screws
ISO 15482:1999
Cross recessed countersunk head drilling screws with tapping screw thread
ISO 15483:1999
Cross recessed raised countersunk head drilling screws with tapping screw thread
ISO 7050:2011
Cross-recessed countersunk (flat) head tapping screws
ISO 7051:2011
Cross-recessed raised countersunk (oval) head tapping screws
ISO 7045:2011
Pan head screws with type H or type Z cross recess - Product grade A
ISO 7721-2:1990
Countersunk flat head screws - Part 2: Penetration depth of cross recesses
Slotted Socket
ISO 1207:2011
Slotted cheese head screws - Product grade A
ISO 1580:2011
Slotted pan head screws - Product grade A
ISO 2009:2011
Slotted countersunk flat head screws - Product grade A
ISO 2010:2011
Slotted raised countersunk head screws - Product grade A
ISO 4766:2011
Slotted set screws with flat point
ISO 7434:1983
Slotted set screws with cone point
ISO 7435:1983
Slotted set screws with long dog point
ISO 7436:1983
Slotted set screws with cup point
ISO 1481:2011
Slotted pan head tapping screws
ISO 1482:2011
Slotted countersunk (flat) head tapping screws
ISO 1483:2011
Slotted raised countersunk (oval) head tapping screws
ISO 2342:2003
Slotted headless screws with shank
SAE AS 9316B-2012 (SAE AS9316B-2012)
Screw, Machine - Hexagon Head, Slotted, Full Shank, Alloy Steel, UNS K14675, 135 KSI MIN, .1900-32 UNS-3A
SAE AS 9317E-2022
SCREW, MACHINE - HEXAGON HEAD, SLOTTED, FULL SHANK, ALLOY STEEL, UNS K14675, 135 KSI MIN, .2500-28 UNS-3A