PERFECT WASHERS & FASTENERS PVT. LTD

established in 1979 commenced manufacturing of Mild Steel Bolts at OUR own modern well equipped factory at 25 & 27, Canal South Road, Kolkata, (West Bengal), India. Constant innovation backed by quality consciousness at all levels had drawn the attention of the industrial sectors for quality fasteners. Today our production include Mild Steel and High Tensile Bolts & Nuts, Screws, Rivets, Studs etc. of different Grades and Specification with Self Color / Plated / Hot Dip Galvanized finishing. The company takes pleasure in manufacturing special products as per customer?s drawings / specifications. We manufacture wide range of products some of which are mention below:-

Greens radish arugula

ISO | DIN | BS | AS | ANSI

OUR EXPERTISE

Zinc Plated Cr3+ (A2K)

Class : 4.6/ 4.8/6.8/10.9

Perfect Washers & Fasteners Pvt. Ltd. established over 18,000 sq. Feet of land are manned by a team of self-devoted enterprising, highly specialized and experienced personnel whose prime message is quality blended with innovation and motivation.

Perfect Washers & Fasteners Pvt. Ltd. since then ventured into specialized fasteners manufactured to customer?s specifications and now commands the market in engineering sectors besides catering to the requirements of other industries as well as in national and international markets.

As Perfect Washers & Fasteners Pvt. Ltd., we believe in keeping track of changing technology and are always in tune with the current requirement of industry. The Research and Development wing consists of a highly qualified and professional team, which aims at constant up gradation and facilities without making any compromise on product design, raw material, manufacturing process, finishing and quality.

Process of Manufacture:

The raw material used for manufacture of bolt is M.S. Rounds. As some of the rounds available are rusty and not perfectly round and straight, it is necessary to make them round. The rounds are pickled in the acid tanks, washed and drawn in a drawing machine. The cleaned rod is fed into the cold heading machine. In the machine, one end of the rod is cut into the desired length with cutting stroke and simultaneously the head formation takes at another end. For the HT bolts, forging is done on hot forging press. The pins are then trimmed in the trimming machine. In quality bolts, the lower side of the head is also faced. Threading is done in the thread rolling machines. While manufacturing nuts, the hexagonal rod of desired size is procured and the nuts are cut on the automatic nut-cutting machine. Cutted nuts blanks are drilled and tapped on the nut-tapping machine. Finally, these are deburred in the polishing barrel.