Deepak fasteners offers a range of fasteners. Salient features: higher min ult tensile - 10,000 psi stronger than industry standard; compound fillet radius - doubles fatigue life at critical head-shank juncture; wide radius threads maximizes fatigue resistance where it is needed most; 3r[radiused root run out] thread - increases fatigue life up to 300 per cent; and e code "lot code" markings - the ultimate in fastener traceability, with 10.9 giving the customers 30 per cent more strength over 8.8, it is not hard to understand why more and more end users are asking for 10.9 product.
