nuts and bolts hardware,
small bolts and nuts
Polishing Hardware Nuts Bolts Mushroom Head SS M6 Carriage Bolts Square Neck
Stainless Steel Carriage bolts are known as coach bolts or round head square neck bolts , formed a mushroom head without drive socket , a square neck underneath head and shaft with threads from end to neck ; Square neck of stainless steel carriage bolt is with self-locking function , it prevents bolt from moving or backing out when bolt is driven into material .
Normally , stainless steel carriage bolts with machine threads for working with a nut like hex nut or square nut or a round nut , it has to be operated by a tooling like spanner or a wrench ; Stainless steel carriage bolt is with security purpose as well , no head drive socket , it is screwed in or out via handle nuts from opposite side .
Mushroom head carriage bolts are made from stainless steel with grade 304 .
Stainless steel carriage bolts standard based on DIN 603 from M5 to M20 , other dimensions can be customized .
Normal tolerances are +/-0.1 mm , and refer to DIN 2768 or ISO 4759for unspecified tolerances . tolerances are different for different legnths .
|0.3 ～ 3||03 ～ 6||6 ～ 30||30 ～ 120||120 ～ 400||400 ～ 1000|
|+/- 0.1||+/- 0.1||+/- 0.2||+/- 0.3||+/- 0.5||+/- 0.8|
Features for shoulder screws
1 , High tensile strenth
2 ,No Magnet
3 , Corrosion resistance
4 , Long service
5 , Easy to be operated
6 , Security Purpose
Property class 304
1 , Drill hole in material with depth as the length " L " of stainless steel carriage bolts
2 ,Insert stainless steel carriage bolts into holes .
3 , Screw nut or nuts onto threaded shaft of carriage bolt from another side till head of carriage bolt is sunken into or onto surface of hole .
Stainless steel carriage bolts are packed in boxes with cartons or poly bags with cartons in bulk .