Self-Tapping Screws

Cross Recessed Pan Head Tapping Screws

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Standard / drawing type Nominal size d

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Equivalent standards

Standard	Standard body

		Steel	Stainless steel
General technical requirements		GB/T 16938
Thread		GB/T 5280
Cross recess		GB/T 944.1
Mechanical properties	Class	–	A2-20H, A4-20H, A5-20H
Mechanical properties	Standard	GB/T 3098.5	GB/T 3098.21
Tolerances	Product grade	A
Tolerances	Standard	GB/T 3103.1
Surface treatment		No treatment; Electroplating requirements in accordance with GB/T 5267.1; Non-electrolytically applied zinc flake coating requirements in accordance with GB/T 5267.2	Simple treatment; Passivation requirements in accordance with GB/T 5267.4
Surface treatment		Any other technical requirements or surface treatments shall be agreed between the purchaser and supplier.
Acceptance inspection and packaging		GB/T 90.1, GB/T 90.2

		Steel	Stainless steel
General technical requirements		GB/T 16938
Thread		GB/T 5280
Cross recess		GB/T 944.1
Mechanical properties	Class	–	A2-20H, A4-20H, A5-20H
Mechanical properties	Standard	GB/T 3098.5	GB/T 3098.21
Tolerances	Product grade	A
Tolerances	Standard	GB/T 3103.1
Surface treatment		No treatment; Electroplating requirements in accordance with GB/T 5267.1; Non-electrolytically applied zinc flake coating requirements in accordance with GB/T 5267.2	Simple treatment; Passivation requirements in accordance with GB/T 5267.4
Surface treatment		Any other technical requirements or surface treatments shall be agreed between the purchaser and supplier.
Acceptance inspection and packaging		GB/T 90.1, GB/T 90.2

		Steel	Stainless steel
General technical requirements		GB/T 16938
Thread		GB/T 5280
Cross recess		GB/T 944.1
Mechanical properties	Class	–	A2-20H, A4-20H, A5-20H
Mechanical properties	Standard	GB/T 3098.5	GB/T 3098.21
Tolerances	Product grade	A
Tolerances	Standard	GB/T 3103.1
Surface treatment		No treatment; Electroplating requirements in accordance with GB/T 5267.1; Non-electrolytically applied zinc flake coating requirements in accordance with GB/T 5267.2	Simple treatment; Passivation requirements in accordance with GB/T 5267.4
Surface treatment		Any other technical requirements or surface treatments shall be agreed between the purchaser and supplier.
Acceptance inspection and packaging		GB/T 90.1, GB/T 90.2

		Steel	Stainless steel
General technical requirements		GB/T 16938
Thread		GB/T 5280
Cross recess		GB/T 944.1
Mechanical properties	Class	–	A2-20H, A4-20H, A5-20H
Mechanical properties	Standard	GB/T 3098.5	GB/T 3098.21
Tolerances	Product grade	A
Tolerances	Standard	GB/T 3103.1
Surface treatment		No treatment; Electroplating requirements in accordance with GB/T 5267.1; Non-electrolytically applied zinc flake coating requirements in accordance with GB/T 5267.2	Simple treatment; Passivation requirements in accordance with GB/T 5267.4
Surface treatment		Any other technical requirements or surface treatments shall be agreed between the purchaser and supplier.
Acceptance inspection and packaging		GB/T 90.1, GB/T 90.2

A cross recessed pan head tapping screw. Specify the point form, length and application.

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