標準編號:	GB/T 3098.4-2000
中文名稱:	緊固件機械性能 螺母 細牙螺紋
英文名稱:	Mechanical properties of fasteners-Nuts-Fine pitch thread
中標分類:	J13    緊固件
行業分類:	GB    國家標準
ICS分類:	21.060.20 21.060.20    螺母 21.060.20
發布機構:	國家質量技術監督局
發布日期:	2000-09-26
實施日期:	2001-2-1
標準狀態:	superseded
被新標準替代:	GB/T 3098.2-2015 緊固件機械性能 螺母
被替代日期:	2017-1-1
替代舊標準:	GB/T 3098.4-1986 緊固件機械性能 細牙螺母
翻譯語言:	英文
文件格式:	PDF
中文字符數:	8000 字
翻譯價格(元):	560.0
交付時間:	付款后 1 個工作日

This Part specifies the mechanical properties of nuts with specified proof load values when tested at an ambient temperature of 10~35℃. Products conforming to the requirements of this Part are evaluated only at the ambient temperature range and may not retain the specified physical properties at higher and lower temperatures, to which the user shall pat attention. This Part applies to nuts: — with nominal thread diameters, D = 8~39 mm (fine pitch thread); — with nominal thread in accordance with GB/T 192 (fine pitch thread); — with diameter pitch combinations in accordance with GB/T 193 (fine pitch thread); — with basic dimensions in accordance with GB/T 196; — with thread tolerances in accordance with GB/T 197; — with specific mechanical requirements; — with widths across flats as specified in GB/T 3104; — with nominal height≥0.5 D; — made of carbon steel or alloy steel. This Part does not apply to nuts requiring special properties such as — prevailing torque performance (see GB/T 3098.9); — weld ability; — corrosion resistance (see GB/T 3098.15); — ability to withstand temperatures above + 300 ℃ or below - 50 ℃. Note 1: Nuts made from free-cutting steel should not be used above + 250 ℃. Note 2: With thread tolerances larger than 6H, a decrease in the stripping strength shall be considered (see Table 1).