Rough Finish Full Thread Square Head Screw

The shank of a rough finish full thread square head screw is fully threaded and the head is square with chamfers.Xiaoguo® has fasteners that can be used in long-term exposure to harsh environments, and we have sufficient stock.

Model:BS 916-1953

Send Inquiry

Product Description

Our rough finish full thread square head screw is produced in accordance with the standard of BS 916-1953. The rough surface enables them to better fit the materials, and they are suitable for both indoor and outdoor use. You can contact us at any time and we can offer a quotation.

Features

Rough finish full thread square head screw is used for agricultural equipment or rusty machinery, etc. Because of its rough surface, it can be used in greasy environments and has an anti-slip effect. Its square head can be easily tightened with a wrench.

This square head screw can be used to fix various plates. You are going to install a metal plate on the wall. With this kind of screw, the metal plate can be firmly fixed to the wall. Its full thread enables the screws to have more interlocking points in the holes of the plate, resulting in an excellent installation effect. The metal plate will not shake or fall off easily.

The full thread square head screw can help you make some small wooden objects, such as small bookshelves, shelving units and the like. You can flexibly use this kind of screw according to your own design to create the works you want. They match the style of some DIY wooden works very well.

The surface of the rough finish full thread square head screw is very rough, increasing the friction between them. For instance, when installing some equipment outdoors, exposed to wind and sun, the ordinary smoothed screws may become loose over time. They can prevent the connecting parts from loosening and ensure the normal operation of the equipment.

Our market distribution

Market	Total Revenue (%)
North America	20
South America	10
Eastern Europe	20
Southeast Asia	2
Oceania	5
Mid East	5
Eastern Asia	15
Western Europe	20
South Asia	5

Structural diagram and parameters

rough finish full thread square head screw

Mon	1/4	5/16	3/8	7/16	1/2	9/16	5/8	3/4	7/8
P	20	18	16	14	12	12	11	10	9
k max	0.186	0.228	0.27	0.312	0.363	0.405	0.447	0.53	0.623
k min	0.166	0.208	0.25	0.292	0.333	0.375	0.417	0.5	0.583
s max	0.445	0.525	0.6	0.71	0.82	0.92	1.01	1.2	1.3
s min	0.435	0.515	0.585	0.695	0.8	0.9	0.985	1.175	1.27
r max	0.03125	0.03125	0.03125	0.03125	0.03125	0.04688	0.04688	0.04688	0.0625