Features： 1、Made of high‑quality stainless steel, it has the characteristics of high bearing capacity, abrasion resistance, and long service life. 2、This expansion screw piton is composed of four parts, including expansion screw, nut, hanger and washer. 3、The insert end of the expansion screw adopts the design of expansion piece, which will expand inside when subjected to force, which is safe and reliable. 4、The applicable pulling force is about 25KN (2500KG), the drilling bit is 8mm/0.3in, and it is easy to install. 5、Practical rock climbing tools are indispensable tools for outdoor rock climbing and cave exploration activities. Specification： Item Type: Climbing Anchor Screw Set Material: 304 Stainless Steel Length: Approx. 8cm/3.1in Wide: Approx. 6cm/2.4in Lanyard Hole Length: Approx. 3.2cm/1.3in (Manual measurement, tolerance within 1cm is allowed) Applicable Pulling Force: 25KN (about 2500KG) Punch Bit: Approx. 8mm/0.3in Purpose: Rock climbing tool Package List： 1 x Set of Climbing Anchor Screw Set