The Hi-Lok HL21PB8-4 is a high-performance fastener designed for secure and reliable bolt assembly in critical structural applications. It is commonly used in aerospace, industrial, and military sectors where vibration resistance and safety are paramount. This precision-engineered fastener ensures optimal load transfer and durability in demanding environments.
hide-Asset:
2792P
hide-Quantity Increment:
1
note-Sold In:
Per Package
note-Units Per Package:
1
spec-Material:
Steel Alloy
note-Note:
Our inventory is extensive. The majority of the items listed in our catalog are stocked and available for immediate shipment.
hide-ItemID:
59943
spec-Thread Size:
1/4"-28
spec-Head Type:
Flush Tension
spec-Head Angle:
100 º
spec-Thread Type:
1/4-28-UNJF-3A Modified
spec-Tensile Strength:
160000 to 180000 psi
spec-Maximum Grip:
1/4"
spec-Nominal Diameter:
1/4"
spec-Diameter A:
0.5018|0.5066"
spec-Diameter D:
0.2485|0.2495"
spec-Diameter TD:
0.2410|0.2440"
spec-Dimension H:
0.1060|0.1080"
spec-Minimum Double Shear Load:
9300 lb
spec-Minimum Tension Load:
5820 lb
spec-Diameter B:
0.395"
spec-Maximum Grip + B Tolerance:
±0.010"
spec-Maximum Grip Tolerance:
±0.005"
spec-Manufacturer:
Hi-Lok
spec-Alternate Part Number:
BACB30JC8-4
spec-NSN:
5320-00-757-5519
spec-NIIN:
00-757-5519
hide-Part # Unpunctuated:
HL21PB84
note-Minimum Order Note:
Minimum order is 5. Must order in increments of 1.
note-Inventory Note:
Need additional stock? Call (877) 920-1876 or email
note-California Residents:
Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.
