Crosby® 279 Forged UNC Shoulder Type Machinery Eye Bolts

Crosby® 279 Forged UNC Shoulder Type Machinery Eye Bolts

  • Forged Steel – Quenched & Tempered.
  • Working Load Limits shown are for in-line pull.  For angle loading, see page 196.
  • Fatigue rated at 1-1/2 times the Working Load Limit at 20,000 cycles.
  • Meets or exceeds all requirements of ASME B30.26 including identification, ductility, design factor, proof load and temperature requirements.  Importantly, these bolts meet other critical performance requirements including fatigue life, impact properties and material traceability, not addressed by ASME B30.26.
  • Recommended for in-line pull.
  • S-279 threaded UNC.
Size S-279
Stock No.
Working
Load
Limit
(lbs.)*
Weight
Per 100
(lbs..)
Dimensions
(in.)
 A**
Thread
B C D E F G H
 1/4 x 1  9900182 650 5.00 1/4 – 20 1.02 1.13  .75 2.29 .19 .53 .77
5/16 x 1-1/8 9900191 1200  9.00 5/16 – 18 1.15 1.38 .88 2.74  .25  .59 .95
 3/8 x 1-1/4 9900208 1550 15.00 3/8 – 16 1.27 1.62 1.00 3.07 .31  .69  1.05
 1/2 x 1-1/2 9900217 2600 28.00 1/2 – 13 1.53 1.95 1.19 3.70 .38  .91 1.27
 5/8 x 1-3/4  9900226 5200 55.00 5/8 – 11 1.79  2.38  1.38 4.45 .50  1.13 1.53
 3/4 x 2  9900235 7200 96.00 3/4 – 10 2.05 2.76 1.50 5.07 .63  1.38 1.71
 7/8 x 2-1/4 9900244 10600 154.00 7/8 – 9 2.31  3.25 1.75 5.87  .75 1.56  2.00
1 x 2-1/2  9900253 13300 238.00 1 – 8 2.57 3.76 2.00 6.66 .88 1.81  2.30
 1-1/8 x 2-3/4 9900257 15000 320.00 1-1/8 – 7 2.75  4.19 2.25 7.20  .97 2.06 2.35
1-1/4 x 3 9900262  21000 399.00  1-1/4 – 7  3.09 4.50  2.50 7.95 1.00 2.28 2.73
 1-1/2 x 3-1/2 9900271 24000 720.00 1-1/2 – 6 3.60 5.50 3.00 9.49 1.25 2.75 3.28
1-3/4 x 3-3/4 9900280 34000  1040.00 1-3/4 – 5 3.75 6.26 3.50 10.48 1.38  3.00 3.60
 2 x 4 9900289 42000 1880.00 2 – 4-1/2  4.00  7.62 4.00 12.31  1.81 3.38 4.50
 2-1/2 x 5 9900298 65000 3250.00 2-1/2 – 4  5.00 8.76  4.50 14.88  2.12  4.25 5.50