We have developed various types of Screws with Cross Star Punch and also Plus Minus (+&-) combination type. They are available as Philips Star Punch in Pan Head, CSK Head, Round Head, Mushroom Head, Raised Head, Washer Faced/Flanged Head, Spring washer & Plain washer fitted Shim Screws, Self Tapping Screws in AB, B and BT type. They are available from 1/8" to 5/16",
2 to 8mm, 8BA to 0BA, NC-NF 4 to 12no. They can be made of MS 4.6 grade, Brass, SS - 304, 310, 316 (Subject to availability of raw materials). These are available with Bright/Yellow Zinc, Nickel, Cadmium, Nickel Chrome, Olive Green and Copper Platting.
STANDARD REFERENCES :
IS : 7438, 7485, 7486.
ISO : 7045, 7046, 7047.
DIN : 965, 966, 6900, 7985, 7987, 7988.
BS : ANSI, JIS, GKW, B-1111, B-1188, 1580, 3643.