Feature

●A spring washer (SW) is built into the hex apset bolt that is used as a loosening stopper. It does not fall off and does not require the hassle of assembling, making it more efficient to work. Hexagon Apset Bolts feature a flat top with a rounded head and a cross groove in the middle. Therefore, it can be tightened with a variety of tools, such as a box wrench, spanner, + screwdriver, making it very convenient for places that require multiple people to use and remove frequently. It may also be used for decorative purposes due to its relatively soft appearance. SEMS comes from a trademark of Illinois Toolwork, the United States that developed and patented washer embedded screws in the 1930s. In the beginning of Japan distribution, the seem made of two parts (2-piece piece) (screws and SW were called [P=2], screws and SW, and flat washers (3) pieces. After that, the combination of alphabet and numbers were determined by using only the flat washers (P=1), and when the washer is ISO standard, use [I] instead of [P], etc
●Quantity: 200 pieces
●Material: Stainless steel
●Surface Treatment: Fabric
●Size: M6 x 18

[M4×12 Tetsu: Trivalent Black]

[M5×25 Stainless Steel: Fabric]

Description

(+) Hexagonal Apse Set Bolts P=2 Stainless Steel Fabric M6 x 18 200 Pieces 14006009