website:https://www.jhmindustry.com/
Shanghai Jian & Mei Industry and Trade Co., Ltd. is the company which manufacture and export fasteners and metal hardware, founded in 2006, with import-export authority. Now, 80% products export to all over the world and 20% sell in domestic market.
Drive with speed, quality, and confidence
The GRK RSS is a speedy lag screw and bolt alternative with immense holding power
The RSS is engineered for easy use, performance you can rely on, and quality you can expect
The recessed star drive virtually eliminates stripping with its six points of contact
The RSS’ built in washer head provides incredible holding power and drawing strength to ensure a secure connection
Using case hardened steel eliminates twisting and snapping as well as increases the structural values of the fasteners
CEE threads enlarge the hole to eliminate splitting, increase draw strength and reduce friction for low torque load
The W-cut on the first few threads of the screw acts like a saw blade reducing torque and making install easier
And lastly, the self tapping zip tip allows the screw to be installed without the need for predrilling
The RSS is a speedy lag screw alternative with a shoulder to help centre it in pre-drill hardware and its own hole; allowing wood to settle easily
It is self tapping and self counter sinking allowing for a clean finish with no sharp edges that could cause injuries
It’s code approved with structural values and for use in treated lumber and ESR-2442
The GRK RSS gives you the features you need to drive with speed, quality and confidence
RSS Rugged Structural Screws