Self-drilling screw manufacturers

[P1ENG]

Hello all,

I'm looking to source some self-drilling screw manufacturers. I currently know of ITW Buildex, Hilti, and Grabber. I am not looking for distributors (Grainger, Fastenal) since they buy from Asia and cannot provide shear/tension capacities.

Thanks!

Juston Fluckey, SE, PE, AWS CWI
Engineering Consultant

 

[Once20036]

I once had an issue with a contractor and the anchors he used.
I contacted the manufacturer, ELCO, and within a week they had performed pull tests applicable to my situation and provided the results.
I`d definitely look into them.

 

[mike20793]

Are you looking for manufacturers that have an ICC code report?

 

[XR250]

Simpson

 

[MacGruber22]

google "TEKS ESR report" - first non-sponsored result.

They are the most readily available and satisfy many situations.

"It is imperative Cunth doesn't get his hands on those codes."

 

[wannabeSE]

I collect evaluation reports for sheet metal screws but typically specify TEKS. I don't know if all of these are current:
Brighton Best International (ICC ESR-3231),
EJOT (IAPMO ER-0276),
ELCO (ICC ESR-1730 and ESR-3294),
Global Fastener (ICC ESR-1730),
Grabber (ICC ESR-1271),
Hilti (ICC ESR-2196),
Intercorp (ICC ESR-3528),
ITW Buildex TEKS (ICC ESR-1976),
ITW Buildex TEKS Select (ICC ESR-3223) ,
Porteous (ICC ESR-3231),
Primesourse Pro-Twist (ICC ESR-1408),
Senco (ICC ESR-3558),
Simpson (ICC ESR-3006)

 

[P1ENG]

Sorry for the late response all. I recently switched jobs and my notifications of response were being sent to my old company. My previous supervisor just called me and told me I was getting several responses to something I posted on eng-tips! So I am updating my email address.

wannabe! You have provided me with all I could need and more. Everyone else gave good answers too, but you took all the work out of it. Mike, I am not necessarily concerned with ICC reports. I just need manufacturer supplied shear and tension values of the screws. I will calculate strength based on AISI unless the ICC report gives significantly better results.

My new position is in cold-formed truss manufacturing, so I actually need to pick a screw (economically) that we will use rather than specifying a generic screw callout. Connected material will be up to (3) layers of 18 GA, 50 ksi steel. Thanks again everyone.

Juston Fluckey, SE, PE, AWS CWI
Engineering Consultant

 

[MacGruber22]

Mike, I am not necessarily concerned with ICC reports.....unless the ICC report gives significantly better results

Not sure I understand. Surely you have read ICC reports? ICC report capacities = manufacturer capacities.



"It is imperative Cunth doesn't get his hands on those codes."

 

[MacGruber22]

Sorry if I called you surely.

"It is imperative Cunth doesn't get his hands on those codes."

 

[wannabeSE]

MacGrubber22,
The ICC reports only have capacities for a few typical installation. Often times, higher capacities can be calculated using the AISI equations rather than using the closest thing in the report.

To calculate the capacity, the manufactures tested fastener strength is needed for limit states involving the actual strength of the screw. The fastener's strength typically doesn't govern until you get to thicker materials and/or using higher strength sheet metal. The evaluation report typically list the nominal strength of the fastener( P_ss and P_ts). These values can vary greatly between manufactures.

 

[P1ENG]

Mac, what wannabe said above sums it up. I don't expect the screw to control but at the same time I'm not going to use some unknown Chinese screw. I just want something that gives the Pss value. Otherwise I can't use it for a structural application.

Juston Fluckey, SE, PE, AWS CWI
Engineering Consultant

 

[MacGruber22]

I understand the screw won't control in your connection, but it seems you *do* have a situation where the ICC values can be used. For example, using ESR-1976 for TEKS. The nominal values for shear, tension pull-out, and pull-over are listed for numerous mil thickness (18 ga. included). If you have combined tension and shear those values, along with your phi/omega and demand get plugged into the AISI interaction equation.

If you have tension coming from only one of the 3 plies of 18 ga, the nominal pull-out capacity can be increased linearly by 2.

"It is imperative Cunth doesn't get his hands on those codes."

 

[P1ENG]

Mac, I don't argue that. My screws are only in shear. The calculated value per AISI is only off a few pounds from the ITW Buildex ICC ESR-1976 results. However, since I don't know which screw I want to use yet, it is a lot of work to interpolate capacity tables from several ICC reports. I have my AISI template set up and takes 0 seconds to determine the steel bearing capacities from (1) fastener to the next (because they are all #10 screws and the sheets don't change). So yes, I could use the ICC reports but it wouldn't be a valuable use of my time. All fasteners manufacturers should have similar nominal shear strengths of screws (again which shouldn't control), so it really comes down to cost and lead time. As long as the fastener has a reported nominal shear strength (i.e. ICC report or just self reported by the manufacturer in some literature), it is a viable option.

Juston Fluckey, SE, PE, AWS CWI
Engineering Consultant

 

[MacGruber22]

Sounds good. Good luck at you new position, P1.

"It is imperative Cunth doesn't get his hands on those codes."