Explanation of standard substitution for screw products

Screws

Slotted cylindrical head screws ISO 1207:1992 | GB /T 65-2000 | instead

GB/T 65-1985
Slotted cheese head screws

Slotted pan head screws ISO 1580:1994 | GB/T 67-2000 | replaces GB/T 67-1985
Slotted pan head screws

Slotted countersunk head screws ISO 2009:1994 | GB/T 68-2000 | replaces GB/T 68-1985
Slotted countersunk flat head screws (common head style)

Slotted semi-countersunk head screws ISO 2010:1994 | GB/T 69-2000 | replaces GB/T 69-1985
Countersunk slotted raised head screws (common head style)

Hexagon socket head screws ISO 4772:1997 | GB/T 70.1-2000 | replaces GB/T 70-1985
Hexagon socket head cap screws

Hex socket screws with flat round head ISO 7380:1997 | GB /T 70.2-2000 |
Hexagon socket button head screws

Hex socket countersunk head screws ISO 10642:1997 | GB/T 70.3-2000 |
Hexagon socket countersunk head screws

-- Slotted cone end setting screw UDC 621.882.219 | GB 71-85 | instead of GB71-76
Slotted set screws with cone point

-- Slotted cone end positioning screw UDC 621.882.2 | GB 72-88 | replaces GB72-76
Slotted setscrews with cone point

-- Slotted flat end setting screw UDC 621.882.219.4 | GB 73-85 | instead of GB73-76
Slotted set screws with flat point

-- Slotted concave end setting screw UDC 621.882.219.4.092.6 | GB 74-85 | instead of GB74-76
Slotted set screws with cup point

-- Slotted long cylindrical end setting screw UDC 621.882.219.4.092.5 | GB 75-85 | instead of GB75-76
Slotted set screws with long dog point

Hexagon socket setting screws with flat end ISO 4026:1993 | GB/T 77-2000 | replaces GB/T 77-1985
Hexagon socket set screws with flat point

-- Internal hexagon end setting screws ISO 4027:1993 | GB/T 78-2000 | instead of GB/T 78-1985
Hexagon socket set screws with cone point

Hexagonal setting screws with cylindrical ends ISO 4028:1993 | GB/T 79-2000 | instead of GB/T 79-1985
Hexagon socket set screws with dog point

Hexagon socket setting screws ISO 4029:1993 | GB/T 80-2000 | replaces GB/T 80-1985
Hexagon socket set screws with cup point

-- Square head long cylindrical spherical end setting screw UDC 621.882.2 | GB 83-88 | instead of GB83-76
Square set screws with long dog point and rounded end

-- Set screw with concave square head UDC 621.882.2 | GB 84-88 | instead of GB84-76
Square set screws with cup point

-- Square set screw with long cylindrical end UDC 621.882.2 | GB 85-88 | instead of GB85-76
Square set screws with long dog point

-- Square head short cylindrical taper end setting screw UDC 621.882.2 | GB 86-88 | instead

GB86-76
Square set screws with short dog point and cone end

Cross recessed pan head screws ISO 7045:1994 | GB/T 818-2000 | replaces GB/T 818-1985
Pan head screws with cross recess

Cross recessed countersunk head screws - Part 1: Steel class 4.8 ISO 7046-1:1994 | GB/T 819.1-2000 | instead of GB/T 819-1985
Countersunk flat head screws (common head style)with cross recess-Part 1:Steelof property class 4.8

Cross recessed countersunk head screws -- Part 2: Steel 8.8, stainless steel A2-70 and non-ferrous metals CU2 or CU3ISO 7046-2:1990 | GB/T 819.2-1997 |
Cross recessed countersunk flat head screws (common head style)-Grade A-Part2:Steel of property class 8.8, stainless and non-ferrous metals

Cross recessed semi-countersunk head screws ISO 7047:1994 | GB/T 820-2000 | replaces GB/T 820-1985
Countersunk raised head screws (common head style) with cross recess

-- Square head flat end setting screw UDC 621.882.2 | GB 821-88 | replaces GB821-76
Square set screws with chamfered end

Cross recessed cylindrical head screws ISO 7048:1998 | GB/T 822-2000 | replaces GB/T 822-1988
Cheese head screws with cross recess

-- Cross recessed small disc head screw UDC 621.882.2 | GB 823-88 | replaces GB823-76
Cross recessed small pan head screws

-- Ring screw UDC 621.882 | GB 825-88 | instead of GB825-76
Eyebolts

-- Slotted pan head positioning screw UDC 621.882.2 | GB 828-88 | replaces GB828-76
Slotted pan head set setscrews with dog point

-- Slotted cylindrical end positioning screw UDC 621.882.2 | GB 829-88 | replaces GB829-76
Slotted setscrews with dog point

-- Slotted cylindrical head shaft position screw UDC 621.882.2 | GB 830-88 | replaces GB830-76
Slotted cheese head screws with shoulder

-- Slotted headless shaft position screw UDC 621.882.2 | GB 831-88 | replaces GB831-76
Slotted shoulder screws

-- Slotted spherical cylindrical head screw with holes UDC 621.882.2 | GB 832-88 | replaces GB832-76
Slotted capstan screws

-- Slotted large round stigma head screw UDC 621.882.2 | GB 833-88 | instead of GB833-76
Slotted large cheese head screws

-- Knurled high head screw UDC 621.882.2 | GB 834-88 | instead of GB834-76
Knurled thumb screws

-- Knurled flat head screw UDC 621.882.2 | GB 835-88 | instead of GB835-76
Knurled screws

-- Knurled small head screw UDC 621.882.2 | GB 836-88 | instead of GB836-76
Knurled screws with small head

-- Slotted pan head captive screw UDC 621.882.2 | GB 837-88 | replaces GB837-76
Slotted pan head screws with waisted shank

-- Hex head captive screw UDC 621.882.2 | GB 838-88 | replaces GB838-76
Hexagon screws with waisted shank

-- Knurled captive screw UDC 621.882.2 | GB 839-88 | instead of GB839-76
Knurled thumb screws with waisted shank

-- Plastic knurled head screw UDC 621.882.2 | GB 840-88 | instead of GB840-79
Plastic diamond knurlhead screws

-- Slotted spherical cylindrical head shaft position screw UDC 621.882.2 | GB 946-88 | replaces GB946-76
Slotted raised head with shoulder

-- Slotted spherical large round stigma head screw UDC 621.882.2 | GB 947-88 | instead of GB947-76
Slotted large raised cheese head screws

-- Slotted countersunk head captive screw UDC 621.882.2 | GB 948-88 | instead of GB948-76
Slotted countersunk head screws with waisted shank

-- Slotted semi-countersunk head captive screw UDC 621.882.2 | GB 949-88 | instead of GB949-76
Slotted raised countersunk head screws with waisted shank

-- Hexagon socket flower pan head screw UDC 621.882.2 | GB 2672-86 | instead of GB2672-81
Hexagon lobular socket pan head screws

-- Hexagon socket flower countersunk head screw UDC 621.882.2 | GB 2673-86 | instead of GB2673-81
Hexagon lobular socket countersunk head screws

-- Hexagon socket flower semi-countersunk head screw UDC621.882.2 | GB 2674-86 | instead of GB2674-81
Hexagon lobular socket raised countersunk head screws

-- Hexagon socket cylindrical head shoulder screw UDC 621.882.215.6 | GB 5281-85 |
Hexagon socket head shoulder screws

Hexagon socket flower cylindrical head screws - Grade 4.8 UDC 621.882.2 | GB 6190-86 | instead of GB2671-81
Hexagon lobular socket head cap screws-property class 4.8

Hexagon socket screw with rounded cylindrical head - Grades 8.8 and 10.9 UDC 621.882.2 | GB 6191-86 | instead of GB2671-81
Hexagon lobular socket head cap screws-property class 8.8 and 10.9

-- Cross recessed screws for precision machinery fasteners GB /T 13806.1-92 |
Fasteners for mecha