Product Overview

B312 SERIES
RETAINING STRAP FOR USE WITH
B303 THRU B309 AND B321 SERIES
•
3
/4” (19.0) Max. Flange
Thickness
• For thicker beams, step up one flange width size
• Material: 14 Gauge
(1.9)
• Standard finishes: GALV, HDG
B321 SERIES BEAM CLAMPS
• Safety Factor of 5
• 1
1
1
/16” (42.8) Max. Flange Thickness
• Setscrew included
• When Retaining Strap is required, order B312 separately
• Recommended Setscrew Torque:
1
/2”-13 350 in-lbs. (39.5 N•m)
5
/8”-11 700 in-lbs. (79.0 N•m)
• Minimum flange thickness: B321-1 thru B321-3
1
/4” (6.3)
B321-4 and B321-5
3
/8” (9.5)
• Standard finishes: ZN, HDG
B303 THRU B309 BEAM CLAMPS
• Safety Factor of 5
• Max. Flange
Thickness
1
/16” (1.6) thru
7
/8” (22.2)
• Setscrew included
• When Retaining Strap is required, order B312 separately
• Recommended Setscrew Torque:
3
/8”-16 150 in-lbs. (16.9 N•m)
1
/2”-13 350 in-lbs. (39.5 N•m)
• Standard finishes: ZN, HDG
Rod
Set
Design
Load
Wt./C
Par
t No. Size A Screw C T
Lbs. kN Lbs. kg
B303
1
/4”-20
3
/8”-16
2
5
/16” (58.7) 1
1 Ga.
(3.0) 400 (1.78) 72 (32.6)
B304
5
/16”-18
3
/8”-16 2
5
/16” (58.7) 11 Ga. (3.0) 600 (2.67) 72 (32.6)
B305
3
/8”-16
3
/8”-16 2
5
/16” (58.7) 11 Ga. (3.0) 600 (2.67) 72 (32.6)
B306
3
/8”-16
1
/2”-13 2
7
/16” (61.9) 7 Ga. (4.5) 1100 (4.89) 97 (44.0)
B307
1
/2”-13
1
/2”-13 2
7
/16” (61.9) 7 Ga. (4.5) 1100 (4.89) 97 (44.0)
B308
1
/2”-13
1
/2”-13
2
9
/16” (65.1)
1
/4” (6.3) 1500 (6.67) 133 (60.3)
B309
5
/8”-11
1
/2”-13 2
9
/16” (65.1)
1
/4” (6.3) 1500 (6.67) 133 (60.3)
1
1
/8”
(28.6)
2
1
/2”
(63.5)
C
A
T
Rod Design
Load Wt./C
Part No. Size A Setscrew C T
Lbs. kN Lbs. kg
B321-1
3
/8”-16
1
/2”-13 3
9
/16” (92.1)
1
/4” (6.3) 1300 (5.78) 187 (84.8)
B321-2
1
/2”-13
1
/2”-13 3
9
/16” (92.1)
1
/4” (6.3) 1400 (6.23) 186 (84.3)
B321-3
5
/8”-11
1
/2”-13 3
9
/16” (92.1)
1
/4” (6.3) 1600 (7.12) 185 (83.9)
B321-4
5
/8”-11
5
/8”-11 3
23
/32” (94.4)
5
/16” (7.9) 1800 (8.00) 239 (108.4)
B321-5
3
/4”-10
5
/8”-11 3
23
/32” (94.4)
5
/16” (7.9) 2000 (8.89) 238 (107.9)
For Flange
Wt./C
Part No. Width A
Lbs. kg
B312-6 6” (152.4) 9” (228.6) 22 (10.0)
B312-9 9” (228.6) 12” (304.8) 30 (13.6)
B312-12 12” (304.8) 15” (381.0) 40 (18.1)
B312-15 15” (381.0) 18” (457.2) 49 (22.2)
1
5
/8”
(41.3)
3
1
/4”
(82.5)
1
1
/4”
(31.7)
1
3
/4”
(44.4)
1
/4”
(6.3)
1
/2”
(12.7)
C
T
A
A
Max. Flange
Thickness
1
11
/16” (42.8)
Max. Flange
Thickness
Beam Clamps
Reference page 112 for general fitting and standard finish specifications.
Beam Clamps
117