Machine Screws

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Coach Screw

Coach Screws


Description:

Coach screws from ITA Fasteners are heavy duty screws meant for hardwood applications. They come with a square or hexagonal head and a pointed tip - the entire length of the screw is externally threaded as well. Their applications are in metal-to-metal or metal-to-sheet fastening. Sometimes, they are also used on concrete surfaces for masonry. These screws require a pilot hole into which it has to be inserted. This is done to ensure that the surface material does not split or break.

The pilot hole diameter has to be half the diameter of the screw for soft timbers and three-fourths of the diameter of the screw for hard timbers. The pointed end and external threads ensure that the screws do not slip out of position. Nevertheless, to reduce the impact of the screws on the wood, it is advisable to use a washer. This also makes it easy for the screws to be removed. It is available in stainless steel, carbon steel, and alloy steel to bear more wear and tear while also making it more corrosion resistant.


COACH SCREW

COACH SCREW DIN 571

coach screw din 571 dimensions
Thread456-7810121620
dsnominal size max.4567810121620
min.3.524.525.526.427.429.4211.315.319.3
damax.567.28.210.212.215.219.224.4
knominal size2.83.5455.5781013
max.3.13.884.385.385.887.458.4510.4513.9
min.2.53.133.634.635.136.557.559.5512.1
snominal size7810121317192430
max.7810121317192430
min.6.647.649.6411.5712.5716.5718.4823.1629.16
emin.7.58.6310.8913.0714.218.7220.8826.1732.95
lweight kg/1000pcs
nominal sizemin.max.
1615.116.91.71292       
2018.9521.052.013.425.02      
2523.9526.052.414.025.82 11.5    
3028.9531.052.814.626.62 12.923.6   
3533.7536.253.115.127.42 14.225.836.2  
4038.7541.253.515.828.22 15.62839.2  
4543.7546.25  8.94 16.93042.1  
5048.7551.25  9.64 18.232.145.484.1 
5553.556.5  10.5 19.634.348.689.7 
6058.561.5  11.2 20.936.551.894.9165
6563.566.5    22.238.554.799.5174
7068.571.5    23.640.757.8107182
7573.576.5    2542.961112192
8078.581.5    26.545.264.5118201
9088.2591.75    29.449.971130220
10098.25101.75    325477.1141238
110108.25111.75      83.4152253
120118.25121.75      89.5163275
130128132       175293
140138142       187317
150148152       198328
160158162       209348
170168172        366
180178182        385
190187.7192.3        404
200197.7202.3        421

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