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C級高強度鋼結構栓接用六角頭螺栓（螺紋長度根據ISO 888） 8.8和10.9級 ISO 7411 - 1984

選擇規格尺寸點擊↓

M12

M16

M20

(M22)

M24

(M27)

M30

M36

括号内尺寸為非優選

ISO 7411 - 1984 C級高強度鋼結構栓接用六角頭螺栓（螺紋長度根據ISO 888） 8.8和10.9級

尺寸單位: mm

國際ISO 7411 - 1984 ISO7411 7411ISO C級高強度鋼結構栓接用六角頭螺栓（螺紋長度根據ISO 888） 8.8和10.9級

掃一掃分享

單重計算公差公制螺紋極限尺寸米/英制螺紋對照螺紋直徑與受力截面積最小破壞扭矩牌号等級毛坯直徑

螺紋規格
d

M12

M16

M20

(M22)

M24

(M27)

M30

M36

P	螺距
c	最大值
c	最小值
d_a	最大值
d_s	最大值
d_s	最小值
d_w	最小值
e	最小值
k	公稱
	最大值
	最小值
k₁	最小值
r	最小值
s	最大值
s	最小值

1.75	2.0	2.5	2.5	3	3	3.5	4
0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8
0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4
14.7	18.7	23.24	25.24	27.64	31.24	34.24	41
12.70	16.70	20.84	22.84	24.84	27.84	30.84	37.00
11.30	15.30	19.16	21.16	23.16	26.16	29.16	35.00
19.2	24.9	31.4	33.3	38	42.8	46.5	55.9
22.78	29.56	37.29	39.55	45.2	50.85	55.37	66.44
7.5	10	12.5	14	15	17	18.7	22.5
7.95	10.75	13.40	14.90	15.90	17.90	19.75	23.55
7.05	9.25	11.60	13.10	14.10	16.10	17.65	21.45
4.9	6.5	8.1	9.2	9.9	11.3	12.4	15
0.6	0.6	0.8	0.8	1	1.2	1.2	1.5
21	27	34	36	41	46	50	60
20.16	26.16	33	35	40	45	49	58.8

螺紋長度b

①,dw_最大值= S_實際值

工藝相關

金屬覆蓋層鋼鐵制件熱浸鍍鋅層技術要求及試驗方法

緊固件公差 Part1:螺栓、螺釘、螺柱和螺母產品等級 A、B和 C級

ISO 4775

高強度鋼結構栓接用 - B級 - 大六角螺母（大對邊）- 8、10級

技術條件和引用标準

材料
螺紋	公差
	标準
機械性能	等級
	标準
表面處理	常規
	可選^③
公差	產品等級
	标準
Acceptability
Associated nuts
Associated plain hole washers
Associated chamfered hole washers
備注

鋼
6 g^①
ISO 261、ISO 965
8.8	10.9
ISO 898/1
Black oxide^②
Zinc electroplated^④ Cadmium electroplated^④ Hot-dip galvanized to ISO 1461	Zinc electroplated^⑤ Cadmium electroplated^⑤ Hot-dip galvanized to ISO 1461^⑥
C except：c, d_w(0.95 s_min) and r. Tolerance for lengths over 180 mm : ± 4.0 mm.
ISO 4759/1
For acceptance procedure, see ISO 3269.
ISO 4775
ISO 7415
ISO 7416
① The tolerance class specified applies before electroplating or hot-dip galvanizing. Hot-dip galvanized bolts may also be supplied by agreement between the user and the manufacturer, having screw threads which after galvanizing shall be accepted by a GO gauge of the basic thread size, i.e. the bolt threads are undersized before galvanizing to tolerance class 6az to accommodate the zinc coating. These bolts are designated and marked 8.8S U or 10.9S U ( see also clauses 6 and 7 ). Tolerance class 6az is in the course of preparation, but in the interim the screw thread dimensions are given in annex A. ② Black oxide means the normal finish resulting from manufacture with a light coating of oil. ③ Other coatings may be negotiated between the purchaser and the manufacturer provided they do not impair the mechanical properties. ④ This will be the subject of a future International Standard. ⑤ Precautions to avoid hydrogen embrittlement may be necessary. Reference should be made to the future International Standard dealing with electroplating of threaded components. ⑥ Precautions to avoid hydrogen embrittlement may be necessary.

引用參考

GB /T 1172

黑色金屬硬度及強度換算值

GB /T 5267.1 - 2002

鍍鋅、鍍鎳、鍍镉、複合鍍等層鍍層鹽霧腐蝕的防護性能

GB /T 193 - 2003

普通螺紋（一般用途米制螺紋）- 直徑與螺距系列 (ISO 261: 1998, MOD)

GB /T 3106 - 2016

緊固件 - 螺栓、螺釘和螺柱 - 公稱長度和螺紋長度 (ISO 888:2012, MOD)

GB /T 12603 - 2005

金屬熱處理工藝分類及代号

GB /T 3 - 1997

普通螺紋收尾、肩距、退刀槽和倒角 (ISO 3508:1976 / ISO 4755:1983)

GB /T 5779.1 - 2000

緊固件表面缺陷 - 螺栓、螺釘和螺柱 - 一般要求

GB /T 5779.3 - 2000

緊固件表面缺陷 - 螺栓、螺釘和螺柱 - 特殊要求

注：技術數據僅供參考，請以官方原件為準！

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材質：碳鋼；表面處理：發黑、鍍鋅、熱鍍鋅；等級：10.9級；公稱直徑範圍：根據客戶需求；公稱長度範圍：根據客戶需求

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