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Midwest Fasteners, Inc.
450 Richard St.
Miamisburg, OH 45342




ARC WELD STUDS: SHORT REDUCED BASE ARC FASTENERS

The Short Reduced Base Arc Stud is a threaded weld stud for application with arc stud welding equipment. This type of stud welded fastener is usually flux-loaded on the weld end for studwelding applications. Available in low carbon steel and stainless steel as standards, other special materials and grades are available. Similar to the Full Thread weld stud, the reduced base style is characterized by external threads for a majority of the weld stud length, and a smaller diameter non-threaded base sized to be less than the full diameter of the threads. For mating part and fit considerations, this type weld stud allows the weld fillet at the base of the welded stud to be maintained, in diameter, at or below the dimension of the thread diameter. Studwelding of the weld stud burns off a portion of the base so that the pre-weld, post-weld length dimensions should be considered. All orders for arc weld studs from Midwest Fasteners include ceramic studwelding ferrules properly sized for the weld stud ordered.

STUD
D
MIN. L
BD
MIN. BL
FD
FH
FERRULE CODE
1/4
7/8
.187
.156
.281
.109
TB250
5/16
7/8
.275
.250
.390
.109
RB312
3/8
7/8
.312
.250
.437
.125
RB375
1/2
1
.435
.250
.593
.156
RB500
5/8
1-1/8
.500
.312
.687
.156
TB625
3/4
1-1/8
.625
.375
.812
.187
TB750
 
THREADS: Standard thread is UNC - 2A (Rolled when possible),
Other threads are available upon request.
Maximum standard thread length is 3-7/8".
MATERIAL: LOW CARBON STEEL
  C-0.23% max. P-0.04% max.
  Mn - 0.90% max S-0.05% max.
STAINLESS STEEL
AISI grade - 302/304/305 std.
Other grades available upon request.
MECHANICAL PROPERTIES:
  Tensile 60,000 psi (min.)
  Yield 50,000 psi (min.)
  Elongation 20% (in 2 inches)

Values for various grades available upon request.
PLANTING: Plating is not standard.
  Copper, nickel, and zine available upon customer request.
Does not apply to Stainless.
FERRULES: Ferrules are component parts of studs. Not sold separately.
 
FERRULE
CODE
B
D
E
M
PART NO.
TB250
.380
.455
.156
.375
092 0012 06
RB312
.445
.546
.156
.437
092 0012 07
RB375
.505
.640
.156
.437
092 0012 08
RB500
.650
.796
.187
.468
092 0012 10
TB625
.785
1.030
.187
.578
092 0012 11
TB750
.921
1.140
.203
.593
092 0012 12
 
TO ORDER OR SPECIFY, GIVE:
1 Product Code............................................................... ARC SRB
2 Diameter....................................................................... D
3 Length.......................................................................... L
4 Material........................................................................  
 
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