What is ISO 8734?
What is ISO 8734?
This International Standard specifies the characteristics of parallel pins (dowel pins) of steel, through hardened or case hardened and martensitic stainless steel with nominal diameters, d, from 1 mm to 20 mm inclusive.
Is standard for dowel pins?
This Indian Standard ( First Revision ) which is identical with ISO 8734:1997 ‘Parallel pins, of hardened steel and martensitic stainless steel ( Dowel pins)’ issued by the International Organization for Standardization ( ISO ) was adopted by the Bureau of Indian Standards on the recommendation of the Bolts, Nuts and …
Are dowel pins hardened?
Standards: In accordance with ASME B 18.8. 2, hardened ground machine dowel pins have a core hardness of RC 47-58 and a minimum case hardness of RC 60. Dowel Pins are made 0.0002″ over a standard diameter and are fit into a reamed hole.
What steel is used for pins?
Stainless steel is commonly used because of its corrosion resistance and its high levels of durability. As cold headed fasteners are often required for heavy duty applications in harsh environments, stainless steel pins are an ideal product to use.
What tolerance are dowel pins?
The most common standard inch or imperial sized precision dowel pin is made to the ASME ANSI B18. 8.2 spec and has a diameter tolerance of -0.00 / +0.0002 and length tolerance of +/-0.010. For example, a ¼” (0.25) diameter standard dowel pin will have a diameter between 0.2500–0.2502″.
What is an oversized dowel pin?
2503. Oversized series Dowel Pins are usually used to fit into worn holes and are generally used in the aftermarket for repairs. They have a basic diameter 0.001 inch over the nominal diameter. They have a basic diameter -0.0002 inch under the nominal diameter.
What material are pins made of?
Raw Materials The most common metals used in safety pins are spring steel, brass, and stainless steel. Most fasteners without critical strength requirements are made from spring steel, an alloy of iron that has a high carbon content (more than 0.5%).
What material are tractor pins made of?
Most hitch pin clips are manufactured from spring wire or stainless steel; however, specialty materials such as marine grade 316 stainless steel can also be used.
How deep should a dowel pin be?
The holes to accommodate the dowels should each be drilled about 1/16 of an inch deeper than 1/2 of the length of the dowel section being used. Dowels 1 1/2-inches long are commonly used, so in this case, you would drill each of your doweling holes to 13/16 of an inch in length.
