拉铆螺母
标准：GB/T17880.1
又称铆螺母、拉帽、瞬间拉帽，用于各类金属板材、管材等制造工业的紧固领域，目前广泛地使用在钣金/薄钣/机箱机柜上。为解决金属薄板、薄管焊接螺母易熔，攻内螺纹易滑牙等缺点而 开发。左为平头拉铆螺母。
拉铆螺母的特点:如果某一产品的螺母需装在外面，而里面空间狭小，且无法通过压铆/涨铆或其它方式达不到其强度要求的时候，则可采用铆。适用于各厚度板材、管材0.5MM-6MM）紧固领域。使用气动或手动拉铆枪可一次铆固，方便牢固，取代传统的焊接或压装工艺。相对对其它工艺的优点：较压铆螺母更牢固，比焊接螺母更方便（无焊点）。
拉铆螺母的种类有很多种，常用的有平头/沉头/小沉头/六角头拉铆螺母/六角型拉铆螺母及以上各型式的盲孔型。
下平头拉铆螺母及其技术参数，其圆柱端分为光杆和柱纹两种，铆接后其头部外露于薄钣，其柱纹可起防滑的作用，平头拉铆螺母也是是拉铆螺母中***牢固***常的一种
|
d |
s |
HOLE SIZE +0.15 -0.00 |
HD &plu***n;0.10 |
HH &plu***n;0.03 |
L &plu***n;0.15 |
D MAX |
IL MAX |
|
6-32UNC |
.020-.080 |
.2520 |
.390 |
.030 |
.420 |
.248 |
.305 |
|
6-32UNC |
.080-.130 |
.2520 |
.390 |
.030 |
.470 |
.248 |
.305 |
|
8-32UNC |
.020-.080 |
.2520 |
.390 |
.030 |
.420 |
.248 |
.305 |
|
8-32UNC |
.080-.130 |
.2520 |
.390 |
.030 |
.470 |
.248 |
.305 |
|
10-24UNC |
.020-.130 |
.2969 |
.415 |
.030 |
.475 |
.296 |
.315 |
|
10-24UNC |
.130-.225 |
.2969 |
.415 |
.030 |
.585 |
.296 |
.315 |
|
10-32UNF |
.020-.130 |
.2969 |
.415 |
.030 |
.475 |
.296 |
.315 |
|
10-32UNF |
.130-.225 |
.2969 |
.415 |
.030 |
.585 |
.296 |
.315 |
|
1/4-20UNC |
.027-.165 |
.3898 |
.500 |
.030 |
.580 |
.3858 |
.380 |
|
1/4-20UNC |
.165-.260 |
.3898 |
.500 |
.030 |
.680 |
.3858 |
.380 |
|
5/16-18UNC |
.027-.150 |
.5312 |
.685 |
.035 |
.690 |
.530 |
.470 |
|
5/16-18UNC |
.150-.312 |
.5312 |
.685 |
.035 |
.805 |
.530 |
.425 |
|
3/8-16UNC |
.027-.150 |
.5312 |
.685 |
.035 |
.690 |
.530 |
.470 |
|
3/8-16UNC |
.150-.312 |
.5312 |
.685 |
0.35 |
.805 |
.530 |
.420 |
|
1/2-13UNC |
.063-.200 |
.6875 |
.865 |
.047 |
1.150 |
.685 |
.850 |
|
1/2-13UNC |
.200-.350 |
.6875 |
.865 |
.047 |
1.300 |
.685 |
.850 |
|
1/2-13UNC |
.350-.500 |
.6875 |
.865 |
.047 |
1.450 |
.685 |
.860 |