General Information:

Male press mounted knurled studs, also known as ground studs, can be a better alternative to the use of standard bolts. The low profile head can allow the studs to be mounted closer to the surface, resulting in a more efficent mounting process. It can be a completely flush mounted stud by either eliminating the collar or by counterboring the hole the stud is being mounted in providing the board/plate is thick enough to allow this.
Like all of our products, these studs can be modified to fit the needs of the individual customer. Modifications to thread length (B=.515), thread type (M12 X 1.75 instead of M12 X 1.5), collar length (Collar = .075), and knurl length (C=.130) are possible modifications.

"C" Rec. Knurled
Shank Length
.8 MM .0315
1.6 MM .063
2.3 MM .091
3 MM .118
4 MM .158
5 MM .197
6 MM .236
8 MM .315
10 MM .394
StSt1 303 STL4 4140
StSt2 304 STL6 1045
StSt3 416 ALUM1 2011
StSt4 17-4Ph ALUM2 6061
STL1 1018 ALUM3 7075
STL2 12L14 BRASS CDA 385
STL3 1144 StSt5 316

Material Notes:

Not all materials are offered in Hex. Please contact us to find out which grades are available.
Need the strength of 10.9 bolt but want it in a stud instead? Choose material code STL4(4140)and it can be heat treated to the optimum requirements needed.
Note: The material mentioned above is offered as a suggestion only. Engineering tests should be used to determine if the product meets form and function desired.

Part Specs:

Shank Length
Round or Hex
Knurl Dia.
Drill Hole Size
METKS9150 M2 X .4 5 MM 6 MM .152 .145
METKS9152 M2.5 X .45 6 MM 6 MM .152 .145
METKS9154 M3 X .5 6 MM 6 MM .152 .145
METKS9156 M3.5 X .6 10 MM 8 MM .201 .194
METKS9158 M4 X .7 11 MM 8 MM .201 .194
METKS9160 M5 X .8 12 MM 10 MM .247 .240
METKS9162 M6 X1.0 12 MM 12 MM .267 .260
METKS9164 M6 X 1.0 16 MM 16 MM .299 .290
METKS9166 M8 X 1.25 22 MM 12 MM .366 .358
METKS9168 M10 X 1.5 26 MM 14 MM .426 .417
METKS9170 M12 X 1.75 26 MM 16 MM .550 .542

Dimensional Tolerances:

Thread Length
Material Size
Knurl Dia.
Hole Size
+ - .2MM Commercial Tolerances + - .003 + -.005 +.002/-.000

Recommended Drill Hole Tolerances:

For the best installation results, try to keep the hole the stud is going to be installed into as close to the hole size mentioned above. Generally speaking, keeping it to a +.002/-.000 is the ideal condition for these parts to install properly. I fthe hole size is too large, the stud will not hold properly with the possiblity of pushing out. If the hole is too small, the stud or the board/plate may break. To add better retention in a board/plate, these items could be welded or soldered providing that the items are properly prepared and that it will not affect any fuction of the assembly.

How to order examples:

You are looking for a M12 stud out of 7075 alum to fit in a 6MM plate with no collar and no finish.
Order part# METKS9170-ALUM3-6MM-NC
Looking for a M6 x 16MM stud with a 5MM shank out of 303 hex st. st that also needs to be passivated.
Order part# METKS9164-StSt1-5MM-HC-PASS
Looking for a M5 stud with a 10MM thread length out of 303 round st. st that also needs to be black zinced.
Order part# METKS9160-StSt1-3MM-RC-BLKZC mod B=10 mm

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