Spaenaur

C
Locknuts
Écrous indesserrables
STEEL
TOP DISTORTION,
PREVAILING-TORQUE
HEX LOCKNUT
GRADE B
Generally identified by 3 equally spaced identical
symbols on the chamfered top surface.
CADMIUM PLATED
WAX FINISH or ZINC PLATED,
Our Option.
Inch
Pouces
Special “Thick” Finished Hexagon Dimensions
Low Carbon Steel C1110 or equivalent, Rockwell
B80-B90, thicker than Grades A and C for use with
low carbon steel and medium carbon steel heat
treated bolts. Grade B is used where the minimum
tensile of 120,000 psi in fine thread series must be
met.
One-Piece ALL METAL LOCKNUTS
Reusable many times.
For use with Grade 5 Bolts
Distortion style may vary.
U.N.C. (Coarse) THREAD U.N.F. (Fine) THREAD
A
B
Unit
Thread SPAENAUR Thread SPAENAUR WIDTH ACROSS FLATS THICKNESS Pkg.
Size No. Size No. Max. Min. Max. Min. Qty.
— — 1/4"-28 165-205 .438 .428 .226 .212 100
1/4"-20 165-102 1/4"-28 — .438 .428 .257 .243 100
5/16"-18 165-202 — — .500 .489 .266 — 100
5/16"-18 165-104 5/16"-24 165-105 .500 .489 .302 .292 100
3/8"-16 165-106 3/8"-24 165-107 .562 .551 .377 .360 100
7/16"-14 165-203 — — .687 .675 .375 — 50
7/16"-14 165-108 7/16"-20 165-109 .688 .675 .430 .410 50
1/2"-13 165-110 1/2"-20 165-111 .750 .736 .510 .490 50
9/16"-12 165-112 9/16"-18 — .875 .861 .555 .535 50
5/8"-11 165-114 5/8"-18 165-115 .938 .922 .645 .621 50
3/4"-10 165-116 3/4"-16 165-117 1.125 1.088 .750 .702 50
7/8"-9 165-118 7/8"-14 165-119 1.312 1.269 .862 .810 50
1"-8 165-120 1"-14 165-121 1.500 1.450 .958 .902 25
U.N.C. (Coarse) THREAD U.N.F. (Fine) THREAD
A
B
Unit
Thread SPAENAUR Thread SPAENAUR WIDTH ACROSS FLATS THICKNESS Pkg.
Size No. Size No. Max. Min. Max. Min. Qty.
1/4"-20 165-130 1/4"-28 165-131 .438 .428 .226 .212 100
5/16"-18 165-132 5/16"-24 165-133 .500 .489 .273 .258 100
3/8"-16 165-134 3/8"-24 165-135 .562 .551 .337 .320 100
7/16"-14 165-136 7/16"-20 165-137 .688 .675 .385 .365 50
7/16"-14 — 7/16"-20 165-204 .687 .675 .355 — 50
1/2"-13 165-138 1/2"-20 165-139 .750 .736 .448 .427 50
9/16"-12 165-140 9/16"-18 165-141 .875 .861 .496 .473 50
5/8"-11 165-142 5/8"-18 165-143 .938 .922 .559 .535 50
3/4"-10 165-144 3/4"-16 165-145 1.125 1.088 .665 .617 50
7/8"-9 165-146 7/8"-14 165-147 1.312 1.269 .776 .724 50
1"-8 165-148 1"-14 165-149 1.500 1.450 .887 .831 25
1-1/8"-7 165-150 1-1/8"-12 — 1.687 1.631 .999 .939 25
1-1/4"-7 165-152 1-1/4"-12 165-153 1.875 1.812 1.094 1.030 10
C38
06 Feb 04
TOP DISTORTION,
PREVAILING-TORQUE
HEX LOCKNUT
GRADE C
Generally identified by 6 equally spaced identical
symbols on the chamfered top surface.
Finished Hexagon Dimensions
Distortion style may vary.
Medium Carbon Steel C-1038 or equivalent, heat treated
Rockwell C26-C32
CADMIUM PLATED
WAX FINISH or ZINC PLATED, For use with
Our Option. Grade 5, 6, 7 & 8 Bolts.
CATALOG 13