GB /T 922 - 1986 Specification for wood screws

螺纹

1.6

2.5

3.5

4.5

d₁	最大=公称值
d₁	最小值
螺距	P
b	≤

1.2	1.4	1.8	2.1	2.5	2.8	3.2	3.5
0.95	1.15	1.55	1.85	2.1	2.4	2.72	3.02
0.8	0.9	1	1.2	1.4	1.6	1.8	2
0.25	0.25	0.25	0.25	0.3	0.3	0.3	0.3

螺纹

5.5

d₁	最大=公称值
d₁	最小值
螺距	P
b	≤

3.8	4.2	4.9	5.6	7.2	8.7	12	15
3.32	3.72	4.42	5.12	6.62	8.12	11.3	14.3
2.2	2.5	2.8	3	3.5	4	5	6
0.3	0.3	0.35	0.35	0.35	0.4	0.4	0.4

①, 材料：
碳素钢：Q215、Q235（GB 700）
铜及铜合金：H62、HPb59-1（GB4424、GB4425）
②, 螺纹末端型式按图规定
2.1 螺纹大径、小径、螺尾和最初两扣螺纹的表面粗糙度不作规定；螺纹侧面粗糙度为R_a=12.5。
2.2 当螺纹总扣数≤10时，螺纹收尾扣数：1~2；当螺纹总扣数＞10时，螺纹收尾扣数：3~5。
2.3 螺纹应做到针尖。
2.4 在木螺纹的螺纹长度范围内，杆部形状可制成圆柱形或圆锥形（但不允许有倒圆锥）。
2.5 螺纹如辗制，经用户同意，钉杆上无螺纹部分的直径，允许小于螺纹大径。
2.6 表面缺陷：
2.6.1 螺纹表面不允许有裂纹、折叠。除螺纹最初两扣和螺尾外，不允许有不完整扣；
2.6.2 木螺钉表面不允许有浮锈，不允许有影响使用的裂缝、凹痕、毛刺、圆钝和飞边。
③, 单位：毫米

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GB /T 192 - 2003

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GB /T 9144 - 2003

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GB /T 9146 - 2003

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GB /T 5280 - 2002

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GB /T 7307 - 2001

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GB /T 7306.1 - 2000

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GB /T 7306.2 - 2000

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GB /T 1181 - 1998

The interference-fit threads

GB /T 3 - 1997

Run-outs, undercuts and chamfers for general purpose metric screw threads (ISO 3508:1976 / ISO 4755:1983)

GB 1167 - 1996

The threads for transition fit

GB 7306 - 1987

Pipe threads where pressure-tight joints are made on the threads

GB /T 6559 - 1986

Screws thread shanks for thread forming screw-Metric coarse thread series

IFI 502 - 1982

Metric triangle lock with thread end

IFI 502 - 1982

Metric Self-tapping Thread End

DIN 3858 - 2005

Whitworth pipe threads for pipe unions

DIN 7505 - 1986

Plastic threads

DIN 7970 - 1984

Threads and thread ends for tapping screws

DIN 103 - 1 - 1977

ISO - Metric Trapezoidal Screw Threads

DIN 7998 - 1975

Thread and thread ends for wood screws

DIN 2510-2 - 1971

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ISO 2901 - 2016

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Pipe threads where pressure-tight joints are not made on the threads

ISO 1478 - 1999

Tapping Screws Thread

ISO 261 - 1998

ISO general purpose metric screw threads - General plan

ISO 262 - 1998

ISO general purpose metric screw threads — Selected sizes for screws, bolts and nuts

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Limits of sizes for general purpose external and internal screw threads

ISO 965-3 - 1998

Deviations for constructional screw threads

ISO 724 - 1993

ISO general-purpose metric screw threads─Basic dimensions

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Tapping Screw Threads and Ends

JIS B 0251 - 2008

Limit gauges for metric screw threads

JIS B 1125 (1) - 2003

Tapping screw threads and ends

JIS B 0209 - 1997

Limits of sizes and tolerances for metric coarse screw threads

JIS B 1125 (1) - 1995

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JB /T 10971 - 2010

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Thread Lengths for Type C, D, F, G, T and TRS Tapping Screws

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Lag screw threads

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AB self-tapping teeth

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self-tapping teeth-B

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Self-tapping teeth-BF

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Triangle lock self-tapping teeth--D、F、G

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Threaded rods(inch series) (A307, F1554, A193, CRES,F593,F468)

ASME/ANSI B 18.6.1 - 1997

Wood thread

ASME/ANSI B 18.6.1 - 1981

Wood thread

ASME/ANSI B 18.6.1 - 1981 (R2016)

Thread and body dimeters for wood screws

EN 60423 - 2007

EN 10226-1 - 2004

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