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A-286 CRES NAS Shear Type Lockbolts
Huck® A-286 CRES NAS Lockbolt fasteners are designed for use in high-strength high temperature applications. The Lockbolt fastener is readily adaptable to high volume production methods. During installation, the Lockbolt fastener is locked together to produce a permanent vibration-resistant fastener which cannot loosen under vibration because the collar material is swaged into annular grooves during the installation. The simple installation procedures reduce production time to a minimum, resulting in lower production costs. An unskilled worker can install up to 15 Lockbolt fasteners per minute. The stump type Lockbolt fasteners are specifically designed for use with Huck® automated equipment. Attached to a drill-riveter machine the Huck automatic fastening system installs fasteners at a rate up to 10 times faster than hand installed threaded fasteners.
| NAS Part Number
Lockbolts
| Huck Part Number
Lockbolts
| Description
| | NAS6974 - 6982
| SLS100-EU
| 100° NAS1097 shear flush head, stump type Lockbolts in 1/8 thru 3/8 diameters
| | NAS6984 - 6992
| SLSP-EU
| Shear type protruding head, stump type Lockbolts in 1/8 thru 3/8 diameters
| | NAS7004 - 7012
| S3L100-EU
| 100° shear/tension intermediate flush head, pull type Lockbolts in 1/8 thru 3/8 dia.
| | NAS7014 - 7024
| S3LP-EU
| Shear type intermediate protruding head, pull type Lockbolts in 1/8 thru 3/8 dia.
| | NAS Part Number
Collars
| Huck Part Number
Collars
| Description
| | NAS1080C
| DC-C 1/8 & 5/32
6LC-C 3/16 - 3/8
| 2024-T4 Aluminum, 1/8 & 5/32 collars are double ended for stump only. 3/16 thru 3/8 are beaded collars for pull type Lockbolts
| | NAS1080G
| 2DC-C
| 2024-T4 Aluminum double ended collars 3/16 thru 3/8 only
| | NAS1080MG
| 2DC-M
| Monel double ended collars for stump type only 1/8 & 5/32 only
| | NAS1080MK
| 6DC-M
| Monel double ended collars for stump type only 3/16 thru 3/8 only
| | NAS1080UG
| 2DC-EU
| A286 CRES double ended collars for stump type 1/8 & 5/32 only
| | NAS1080UK
| 6DC-EU
| A286 CRES double ended collars for stump type 3/16 thru 3/8 only
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| Mechanical performance data for A-286 CRES shear type NAS Lockbolts
| | Fastener
Diameter
| Ultimate Tensile with NAS1080C
Collars
| Ultimate Tensile with NAS1080G
Collars
| Ultimate Tensile with NAS1080UG, UK, MG and MK Collars
| Double Shear Strength
(95KSI)
| 1/8
| 450 lbs
| N/A
| 755 lbs
| 2300 lbs
| 5/32
| 705 lbs
| N/A
| 1320 lbs
| 3610 lbs
| 3/16
| 1105 lbs
| 1410 lbs
| 1850 lbs
| 5380 lbs
| 1/4
| 2040 lbs
| 2490 lbs
| 3250 lbs
| 9300 lbs
| 5/15
| 3250 lbs
| 3250 lbs
| 5000 lbs
| 14600 lbs
| 3/8
| 5050 lbs
| 5050 lbs
| 7200 lbs
| 21000 lbs
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Reference:
NAS1413 for Lockbolt procurement and quality conformance requirements.
NAS1080 for Lockbolt collars.
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