MALE PRESS MOUNT KNURLED STUD
HEX OR ROUND

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 (10-24 instead of 10-32), collar length (Collar = .075), and knurl length (C=.118) are possible modifications. The parts can be modified with metric threads as well, just specify the thread needed. Example: M6x1.0 x 16mm vs 1/4-20 x 5/8".


std-02a (1K) std-02b (1K) std-02c (1K)

Board/Plate
Thickness
"C" Rec. Knurled
Shank Length
1/32 .032
1/16 .062
3/32 .093
1/8 .125
3/16 .187
1/4 .250
5/16 .312
3/8 .375
Material
Code
Material
Grade
Material
Code
Material
Grade
StSt1 303 STL4 4140
StSt2 304 STL5 4340
StSt3 416 ALUM1 2011
StSt4 17-4Ph ALUM2 6061
STL1 1018 ALUM3 7075
STL2 12L14 BRASS 360
STL3 1144 COPPER C145

Material Notes:

Need the strength of a grade 5 or 8 bolt but want it in a stud instead? Material codes STL4(4140) and STL5(4340) are ideal choices for these options along with grade 4130. Material codes StSt4(17-4) and StSt2(304) are also options for high tensile strength with the added bonus of being more adverse to rusting.
Note: These materials are only used as suggestions. Engineering tests should be used to determine if the product meets form and function desired.


Part Specs:

Part
Code
Thread
Size
"B"
Shank Length
"D"
Round or Hex
"K"
Knurl Dia.
Recommended
Drill Hole Size
MKS9150 2-56 3/16 .250 .152 .145
MKS9152 4-40 1/4 .250 .152 .145
MKS9154 6-32 3/8 .312 .201 .194
MKS9156 8-32 7/16 .312 .201 .194
MKS9158 10-32 1/2 .375 .247 .240
MKS9160 1/4-20 1/2 .500 .267 .260
MKS9162 1/4-20 5/8 .625 .299 .290
MKS9164 5/16-18 7/8 .500 .366 .358
MKS9166 3/8-16 1.00 .562 .426 .417
MKS9168 1/2-13 1.00 .625 .550 .542

Dimensional Tolerances:

Thread Length
"B"
Material Size
"D"
"K"
Knurl Dia.
"C"
Length
Hole Size
+ - .005 Commercial Tolerances + - .003 + -.005 +.002/-.000

Recommended Drill Hole Tolerance:

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. 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:

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