Tightening torque for Scoket Head Cap Screw
Tightening torque for Scoket Head Cap Screw
(OP)
Hi,
Can anybody tell me how to find tightening torque for socket head cap screw.
I am sure tightening torque for hex head bolt and socket head cap screw will be different
I think the procedure mentioned in machinery's handbook is for hex head bolt.
Please comment on this
Thank you..! ! !
Can anybody tell me how to find tightening torque for socket head cap screw.
I am sure tightening torque for hex head bolt and socket head cap screw will be different
I think the procedure mentioned in machinery's handbook is for hex head bolt.
Please comment on this
Thank you..! ! !





RE: Tightening torque for Scoket Head Cap Screw
FAQ725-536: How do I calculate an assembly torque?
FAQ725-600: What are good fastener references?
You can use http://www.boltplanet.com/ to check your math.
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Tightening torque for Scoket Head Cap Screw
it is a good help for me at this initial stage, but still confused as thread forms are universal around the globe
and irrespective of the bolt head so the bolt manufacturer should design the bolt head to withstand the tightening
torque for that particular thread form, only one can change only bolt material. so i presume there will be same
tightening torque for M10 Hex Head bolt and M10 Socket head cap screw...
can you advice me on this..?
Thank you once again.. ! ! !
RE: Tightening torque for Scoket Head Cap Screw
Read the material provided in Kenat's FAQ links. I suggest that you start with the NASA reference.
After that, please come back and ask more specific questions if necessary.
RE: Tightening torque for Scoket Head Cap Screw
Ted
RE: Tightening torque for Scoket Head Cap Screw
RE: Tightening torque for Scoket Head Cap Screw
Ted
RE: Tightening torque for Scoket Head Cap Screw
Regards,
Cockroach
RE: Tightening torque for Scoket Head Cap Screw
RE: Tightening torque for Scoket Head Cap Screw
Socket head screws were designed for tool and die work (hence the small head diameters) and they have 'undersized' bearing surface area for their load capacity so you need to watch out for embedment at high clamp loads (esp. with aluminum).
RE: Tightening torque for Scoket Head Cap Screw
Regards
Desert fox
RE: Tightening torque for Scoket Head Cap Screw
RE: Tightening torque for Scoket Head Cap Screw
Most companies have standard torques that relate to the assumed load carrying capacity for each size of fastener. For example my company uses many stainless fasteners in an environment where thread sealants and lubricants are not permitted. As a result our torques for this situation are much lower than they could be, to ensure things don't gall.
David
RE: Tightening torque for Scoket Head Cap Screw
Based on the above discussion.. can anyone advise me how to find torques carrying capacity of bolting head such as soceket head cap screw and hexagonal head ..
Thank you in advance... :)
Regards
feng09
RE: Tightening torque for Scoket Head Cap Screw
There are many cases where this is not a good strategy, but it works well in many general purpose applications.
Make sure when you are running the test that you use all virgin components for each test; performance may vary dramatically on reuse.
RE: Tightening torque for Scoket Head Cap Screw
For hex head cap screws it seems the strength of the thread (based on material) is typically the limit.
For socket head cap screws I'd compare MintJulep's unbrako link, pages 7 and ll for conventional non Stainless and low head types.
They say their "recommended seating torque" is based on a particular thread stress, but for low heads is 50/120 of the SHCS despite similar material properties.
I've wrecked a few hexes by overtightening or, much more often, when attempting to removed seized fasteners , when as you seem to suspect at some point the female hex became the limit by starting to yield.
http://diyhousehelp.com/wp-content/uploads/2012/06...