R1S High Tensile Spin-Lock Rock Bolt
Williams R1S High Tensile Spin-Lock Rock Anchor utilizes an ASTM A108 Grade C1045 steel which provides high strength capacity and has the advantage of utilizing more common steel for greater availability.
Structural Properties
| Diameter Range |
Yield Stress |
Ultimate Stress |
Elongation in 2” Gauge Length |
Reduction of Area |
|---|---|---|---|---|
| 1/2” to 1” (13 to 25 mm) |
92 KSI (634 MPa) |
120 KSI (827 MPa) |
11% min | 20% min |
| 1-1/8” and up (29 mm) |
81 KSI (558 MPa) |
105 KSI (723 MPa) |
11% min | 20% min |
Meets strength of ASTM A325
R1S High Tensile Spin-Lock Rock Anchor
ASTM 108 Grade C1045
| Dia & Threads per In |
Max Recommended Design Load at 2:1 Safety Factor |
Yield Strength (fy) |
Ultimate Strength (fu) |
Drill Hole Diameter (1) |
Type Head Ass’y |
Torque (ft-lbs) | Part Number |
|
|---|---|---|---|---|---|---|---|---|
| To Expand Shell (2) |
On Nut for Tension (3) |
|||||||
| 1/2” – 13 (13 mm) |
8.51 kips (37.9 kN) |
13.1 kips (58.1 kN) |
17.0 kips (75.7 kN) |
1-1/4” – (32 mm) 1-5/8” – (41 mm) |
A 10 A 13 |
50 ft-lbs (70*) |
85 | R1S04A10 R1S04A13 |
| 5/8” – 11 (16 mm) |
13.6 kips (60.3 kN) |
20.8 kips (92.5 kN) |
27.1 kips (121 kN) |
1-1/4” – (32 mm) 1-5/8” – (41 mm) |
A 10 A 13 |
125 ft-lbs (250*) |
125 | R1S05A10 R1S05A13 |
| 3/4” – 10 (19 mm) |
20.0 kips (89.1 kN) |
30.7 kips (137 kN) |
40.1 kips (178 kN) |
1-3/4” – (44 mm) 1-3/4” – (44 mm) |
B 14 C 14 |
210 ft-lbs (250*) |
210 | R1S06B14 R1S06C14 |
| 7/8” – 9 (22 mm) |
27.7 kips (123 kN) |
42.5 kips (189 kN) |
55.4 kips (247 kN) |
2” – (51 mm) | B 16 | 390 ft-lbs (410*) |
390 | R1S07B16 |
| 1” – 8 (25 mm) |
36.4 kips (162 kN) |
55.8 kips (248 kN) |
72.7 kips (323 kN) |
2” – (51 mm) | B 16 | 500 ft-lbs (600*) |
550 | R1S08B16 |
| 1-1/8” – 7 (29 mm) |
40.1 kips (178 kN) |
61.8 kips (275 kN) |
80.1 kips (356 kN) |
2” – (51 mm) 2-1/4” – (57 mm) |
B 16 C 18 |
550 ft-lbs (600*) |
770 | R1S09B16 R1S09C18 |
| 1-1/4” – 7 (32 mm) |
50.9 kips (226 kN) |
78.5 kips (349 kN) |
102 kips (453 kN) |
2-1/4” – (57 mm) 2-1/2” – (64 mm) |
C 18 B 20 |
750 ft-lbs (1200*) |
1000 | R1S10C18 R1S10B20 |
| 1-3/8” – 8 (35 mm) |
65 kips (287 kN) |
100 kips (443 kN) |
129 kips (575 kN) |
2-1/2” – (64 mm) | B 20 | 750 ft-lbs (1600*) |
Note (4) | R1S11B20 |
| 1-1/2” – 6 (38 mm) |
73.8 kips (328 kN) |
114 kips (506 kN) |
148 kips (656 kN) |
3” – (76 mm) | B 24 | 1000 ft-lbs (1700*) |
Note (4) | R1S12B24 |
| 2” – 6 (51 mm) |
139 kips (619 kN) |
215 kips (955 kN) |
278 kips (1238 kN) |
3-1/2” – (89 mm) | C 28 | 1000 ft-lbs (4000*) |
Note (4) | R1S16C28 |
(*) Do not exceed these numbers
(1) Care should be taken to drill a straight and properly sized hole.
(2) A function of strata strength. More torque may be required on long anchors or in special rock conditions. Consult your Williams Representative.
(3) Torque value listed will achieve approximate load of 50% of the anchor ultimate strength, and is based on the torque tension curves here.
(4) Stress to desired tensile load using a hollow ram hydraulic jack. Consult your Williams Representative. – Inconsistencies in rock from site to site and even from hole to hole may affect anchor performances. Fissures, voids, seams, rock psi, drilling through clay or bentonite and direction of bedding planes are all possible variables. Should problems occur, consult Williams for troubleshooting.
– Spin-Locks come standard with 12” of threaded area. Other lengths available upon request.
– WILLIAMS reserves the right to ship full length or coupled units as necessary.
Head Assemblies
The Williams Spin-Lock anchor assembly gives full 300° bearing area. The smooth shell design allows for maximum shell to rock contact and eliminates “point of contact” created by serrated designs. The cone design supports the shell 300°, thereby eliminating any possible collapse of the shell under high load conditions. The thrust ring stop in front of the shell prevents any possible rebound of the expanded shell down the cone when subjected to nearby blasting. The Williams Spin-Lock anchor has been field proven on the world’s largest projects to far exceed in tension capacity any other mechanical anchor on the market.
| Head Assembly |
Drill Hole Diameter |
Bolt Diameter & Pitch |
Cone | Shell | Thrust Ring | Slip Rings |
Overall Assembly Length |
|||
|---|---|---|---|---|---|---|---|---|---|---|
| Length | Part No. | Length | Part No. | Diameter | Thickness | |||||
| A10 | 1-1/4” (32 mm) |
1/2” – 13 NC (19 mm) |
1-7/8” (48 mm) |
SC-114-4 | 1-7/8” (48 mm) |
SS-114 | 1-1/8″ (29 mm) |
9/16″ (14 mm) |
1/16″ (1.6 mm) |
4-7/16” (112 mm) |
| 5/8” – 11 NC (16 mm) |
1-7/8” (48 mm) |
SC-114-5 | 1-7/8” (48 mm) |
SS-114 | 1-1/8″ (29 mm) |
9/16″ (14 mm) |
1/16″ (1.6 mm) |
4-7/16” (112 mm) |
||
| A13 | 1-5/8” (41 mm) |
1/2” – 13 NC (13 mm) |
1-7/8” (48 mm) |
SC-158-4 | 1-7/8” (48 mm) |
SS-158 | 1-1/2″ (38 mm) |
9/16″ (14 mm) |
1/16″ (1.6 mm) |
3-3/4” (95 mm) |
| 5/8” – 11 NC (16 mm) |
1-7/8” (48 mm) |
SC-158-5 | 1-7/8” (48 mm) |
SS-158 | 1-1/2″ (38 mm) |
9/16″ (14 mm) |
1/16″ (1.6 mm) |
3-3/4” (95 mm) |
||
| B14 | 1-3/4” (44 mm) |
3/4” – 10 NC (19 mm) |
3-3/4” (95 mm) |
LC-158-6 | 3-3/4” | LS-175 | 1-5/8” (41mm) |
15/16″ (24 mm) |
1/16″ (1.6 mm) |
8” (203 mm) |
| B16 | 2” (51 mm) |
7/8” – 9 NC (22 mm) |
2-1/2” (64 mm) |
LC-200-7 | 4” (102 mm) |
LS-200 | 1-7/8” (48 mm) |
15/16″ (24 mm) |
1/16″ (1.6 mm) |
7-3/8” (187 mm) |
| 1” – 8 NC (25 mm) |
2-1/2” (64 mm) |
LC-200-8 | 4” (102 mm) |
LS-200 | 1-7/8” (48 mm) |
15/16″ (24 mm) |
1/16″ (1.6 mm) |
7-3/8” (187 mm) |
||
| 1-1/8” – 7 NC (30 mm) |
2-1/2” (64 mm) |
LC-200-9 | 4” (102 mm) |
LS-200 | 1-7/8” (48 mm) |
1-1/8″ (29 mm) |
1/16″ (1.6 mm) |
7-1/2” (191 mm) |
||
| B20 | 2-1/2” (64 mm) |
1-1/4” – 7 NC (32 mm) |
4” (102 mm) |
LC-250 | 4” (102 mm) |
LS-250 | 2-1/8” (54 mm) |
1-1/4″ (32 mm) |
9/64″ (3.6 mm) |
9-1/2” (241 mm) |
| 1-3/8” – 8 UN (35 mm) |
4” (102 mm) |
LC-250 | 4” (102 mm) |
LS-250 | 2-1/8” (54 mm) |
1-3/8″ ( 35mm) |
9/64″ (3.6 mm) |
9-5/8” (244 mm) |
||
| B24 | 3” (76 mm) |
1-1/2” – 6 NC (38 mm) |
5-1/2” (140 mm) |
LC-300 | 5-1/2” (140 mm) |
LS-300 | 2-3/4” (70 mm) |
1-1/2″ ( 38mm) |
5/32″ (4 mm) |
12-7/8” (325 mm) |
| C14 | 1-3/4” (44 mm) |
3/4” – 10 NC (19 mm) |
4-1/4” (108 mm) |
LCF-175-6 | 3-3/4” (95 mm) |
LS-175 | 1-5/8″ (41 mm) |
3/4″ (19 mm) |
1/16″ (1.6 mm) |
9” (229 mm) |
| 7/8” – 9 NC (22 mm) |
4-1/4” (108 mm) |
LCF-175-7 | 3-3/4” (95 mm) |
LS-175 | 1-5/8″ (41 mm) |
1″ (25 mm) |
1/16″ (1.6 mm) |
9-3/16” (233 mm) |
||
| C18 | 2-1/4” (57 mm) |
1-1/8” – 7 NC (30 mm) |
4-7/8” (124 mm) |
LCF-225-9 | 4” (102 mm) |
LS-225 | 2” (51 mm) |
1-1/4″ (32 mm) |
1/16″ (1.6 mm) |
10” (254 mm) |
| 1-1/4” – 7 NC (32 mm) |
4-7/8” (124 mm) |
LCF-225-10 | 4” (102 mm) |
LS-225 | 2” (51 mm) |
1-3/8″ (35 mm) |
1/16″ (1.6 mm) |
10-1/4” (260 mm) |
||
| C28 | 3-1/2” (89 mm) |
2” – 6 UN (51 mm) |
7” (178 mm) |
LCF-350-16 | 6” (152 mm) |
LS-350 | 2-7/8” (73 mm) |
2” (51 mm) |
1/8″ (3.2 mm) |
15-1/8” (384 mm) |
Coupled Head Assemblies
Williams can manufacture Spin-Lock Anchor systems with the use of a transition coupling, which allows the anchor to be designed with a continuously workable thread-form. This is advantageous when the anchor length may need to be adjusted in the field due to variable site conditions. The transition coupling engages a continuously threaded U.N. bar into the head assembly and the All-Thread Bar (typically Grade 75 & Grade 80 All-Thread Rebar or 150 KSI All-Thread-Bar) is attached to the other end of the coupling.
C2T Stop-Type Couplings & C2D Flange Couplings
| Bar Diameter |
Outside Diameter |
Overall Length |
Stop-Type Part Number |
Flange Coupling | |
|---|---|---|---|---|---|
| Flange Size | Part Number | ||||
| 1/2” (13 mm) |
3/4” (19 mm) |
1-1/2” (38 mm) |
C2T-04 | 2” x 2” (51 x 51 mm) |
C2D-04 |
| 5/8” (16 mm) |
1” (25 mm) |
1-3/4” (45 mm) |
C2T-05 | 2” x 2” (51 x 51 mm) |
C2D-05 |
| 3/4” (19 mm) |
1-1/8” (29 mm) |
2” (51 mm) |
C2T-06 | 2” x 2” (51 x 51 mm) |
C2D-06 |
| 7/8” (22 mm) |
1-1/4” (32 mm) |
2-1/4” (57 mm) |
C2T-07 | 3” x 3” (76 x 76 mm) |
C2D-07 |
| 1” (25 mm) |
1-1/2” (38 mm) |
3” (76 mm) |
C2T-08 | 3” x 3” (76 x 76 mm) |
C2D-08 |
| 1-1/8” (29 mm) |
1-5/8” (41 mm) |
3-1/2” (89 mm) |
C2T-09 | 3” x 3” (76 x 76 mm) |
C2D-09 |
| 1-1/4” (32 mm) |
1-7/8” (48 mm) |
3-3/4” (95 mm) |
C2T-10 | 3” x 3” (76 x 76 mm) |
C2D-10 |
| 1-3/8” (35 mm) |
2-1/8” (54 mm) |
4” (102 mm) |
C2T-11 | 3” x 3” (76 x 76 mm) |
C2D-11 |
| 1-1/2” (38 mm) |
2-1/4” (57 mm) |
5” (127 mm) |
C2T-12 | 3” x 3” (76 x 76 mm) |
C2D-12 |
| 2” (51 mm) |
3” (76 mm) |
6” (152 mm) |
C2T-16 | – | – |
H1F Heavy Duty Hex Nuts
| Bar Diameter |
Across Flats |
Across Corners |
Thickness | Part Number |
|---|---|---|---|---|
| 1/2” (13 mm) |
7/8” (22 mm) |
1.0” (26 mm) |
31/64” (12 mm) |
H1F-04 |
| 5/8” (16 mm) |
1-1/16” (27 mm) |
1.2” (31 mm) |
39/64” (16 mm) |
H1F-05 |
| 3/4” (19 mm) |
1-1/4” (32 mm) |
1.4” (37 mm) |
47/64” (19 mm) |
H1F-06 |
| 7/8” (22 mm) |
1-7/16” (37 mm) |
1.7” (42 mm) |
55/64” (22 mm) |
H1F-07 |
| 1” (25 mm) |
1-5/8” (41 mm) |
1.9” (48 mm) |
63/64” (25 mm) |
H1F-08 |
| 1-1/8” (29 mm) |
1-13/16” (46 mm) |
2.1” (53 mm) |
1-7/64” (28 mm) |
H1F-09 |
| 1-1/4” (32 mm) |
2” (51 mm) |
2.3” (59 mm) |
1-7/32” (31 mm) |
H1F-10 |
| 1-3/8” (36 mm) |
2-3/16” (56 mm) |
2.5” (64 mm) |
1-11/32” (34 mm) |
H1F-11 |
| 1-1/2” (38 mm) |
2-3/8” (60 mm) |
2.7” (70 mm) |
1-15/32” (37 mm) |
H1F-12 |
| 2” (51 mm) |
3-1/8” (79 mm) |
3.6” (92 mm) |
1-31/32” (50 mm) |
H1F-16 |
R9F Hardened Washers
| Bar Diameter |
Outside Diameter |
Inside Diameter |
Thickness | Part Number |
|---|---|---|---|---|
| 1/2” (13 mm) |
1-1/16” (27 mm) |
17/32” (14 mm) |
9/64” (3.56 mm) |
R9F-04-436 |
| 5/8” (16 mm) |
1-5/16” (33 mm) |
11/16” (17 mm) |
9/64” (3.6 mm) |
R9F-05-436 |
| 3/4” (19 mm) |
1-7/16” (37 mm) |
13/16” (21 mm) |
9/64” (3.6 mm) |
R9F-06-436 |
| 7/8” (22 mm) |
1-3/4” (45 mm) |
15/16” (24 mm) |
5/32” (4 mm) |
R9F-07-436 |
| 1” (25 mm) |
2” (51 mm) |
1-1/16” (29 mm) |
5/32” (4 mm) |
R9F-08-436 |
| 1-1/8” (29 mm) |
2-1/4” (57 mm) |
1-3/16” (30 mm) |
5/32” (4 mm) |
R9F-09-436 |
| 1-1/4” (32 mm) |
2-1/2” (64 mm) |
1-3/8” (35 mm) |
5/32” (4 mm) |
R9F-10-436 |
| 1-3/8” (36 mm) |
2-3/4” (70 mm) |
1-1/2” (38 mm) |
5/32” (4 mm) |
R9F-11-436 |
| 1-1/2” (38 mm) |
3” (76 mm) |
1-5/8” (41 mm) |
5/32” (4 mm) |
R9F-12-436 |
| 2” (51 mm) |
3-3/4” (95 mm) |
2-1/8” (54 mm) |
7/32” (5.6 mm) |
R9F-16-436 |
R8M Beveled Washers
| Bar Diameter |
Degree of Bevel |
Outside Diameter |
Inside Diameter |
Maximum Thickness |
Minimum Thickness |
Part Number |
|---|---|---|---|---|---|---|
| 1/2” (13 mm) |
14° | 1-1/4” (32 mm) |
9/16” (14 mm) |
7/16” (11 mm) |
1/8” (3 mm) |
R8M-04 |
| 5/8” (16 mm) |
11° | 1-9/16” (40 mm) |
13/16” (21 mm) |
1/2” (13 mm) |
3/16” (5 mm) |
R8M-06 |
| 3/4” (19 mm) |
11° | 1-9/16” (40 mm) |
13/16” (21 mm) |
1/2” (13 mm) |
3/16” (5 mm) |
R8M-06 |
| 7/8” (22 mm) |
15° | 2-1/16” (52 mm) |
1” (25 mm) |
3/4” (19 mm) |
1/4” (6 mm) |
R8M-08S |
| 1” (25 mm) |
15° | 2-1/16” (52 mm) |
1” (25 mm) |
3/4” (19 mm) |
1/4” (6 mm) |
R8M-08S |
| 1-1/8” (29 mm) |
15° | 2-13/16” (71 mm) |
1-5/16” (33 mm) |
1” (25 mm) |
5/16” (8 mm) |
R8M-09S |
| 1-1/4” (32 mm) |
15° | 3-3/8” (86 mm) |
1-9/16” (40mm) |
1-15/64” (31 mm) |
3/8” (9.5 mm) |
R8M-12S |
| 1-3/8” (36 mm) |
15° | 3-3/8” (86 mm) |
1-9/16” (40 mm) |
1-15/64” (31 mm) |
3/8” (9.5 mm) |
R8M-12S |
| 1-1/2” (38 mm) |
15° | 3-1/2” (89 mm) |
1-3/4” (45 mm) |
1-1/4” (32mm) |
3/8” (9.5 mm) |
R8M-13S |
| 2” (51 mm) |
5° | 3-9/16” (91 mm) |
2-1/16” (52 mm) |
13/16” (21 mm) |
1/2” (13 mm) |
R8M-16 |
To achieve full strength of the nut, beveled washers must be used in conjunction with a hardened washer.
