The screws of the anchor have been manufactured under standard and their quality-hardness is 6.8 (i. e. 60 to 80 Kgf/mm).
The washer is wide, which gives a bigger allowance for place or structure to be fastened.
While performing the fixing of the anchor, the plastic ring gets deformed. which fills and blocks the hole of the place of structure to be fastened.This plastics absorbs material irregularities, in addition,it is a useful damp-proof function to inner mechanism of the anchor.
Any screw head available as your requirement.
The cone has some grooves(milled)in order to prevent the anchor from loose or spin movement after fixing into the hole and ready to expand.
* The Flat Washer have DIN 125 Or DIN 9021 for customers' choose
* The Hex Nut is as DIN 934 standard
* The special size of the screw/bolt and the sleeve styles could be supplied as customers' needings.