Slotted & Cross Recessed Machine Screws

Slotted Countersunk Head Screws

GB/T 68-2016 (reference only)

Nominal size d

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GB/T 68-2016 dimension drawing

Dimensions in mm

Specification parameters

Equivalent standards

Standard	Standard body

Technical conditions and referenced standards

		Steel	Stainless steel	Non-ferrous metals
General technical requirements		GB/T 16938
Threads	Tolerances	6g
Threads	Standard	GB/T 193、GB/T 9145
Mechanical properties	Property class	d < 3 mm: by agreement; d ≥ 3 mm: property classes 4.8 and 5.8	A2-50、A2-70	d < 3 mm: by agreement; d＞3mm:CU2、CU3、AL4
Mechanical properties	Standard	d < 3 mm: by agreement; d≥3mm:GB/T 3098.1	GB/T 3098.6	d < 3 mm: by agreement; d≥3mm:GB/T 3098.10
Tolerances	Product grade	A
Tolerances	Standard	GB/T 3103.1
Surface discontinuities		GB/T 5779.1	–
Surface treatment		Untreated; 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	Simple treatment; Electroplating requirements in accordance with GB/T 5267.1
Surface treatment		Any other technical requirements or surface treatments shall be agreed between supplier and purchaser.
Acceptance inspection and packaging		GB/T 90.1、GB/T 90.2

Product overview

Slotted Countersunk Head Screws to GB/T 68-2016. For a quotation, specify the nominal size, any applicable length or thread pitch, material or property class, finish and quantity.