Stainless S-9 Undercut Anchor Data
Presented below are four different stainless steel options for the S-9 Undercut Concrete Anchors. Generally, the Stainless 304 B8 Class 1 and the Stainless 316 B8M Class I S-9 Undercut Concrete Anchors are the least expensive and most readily available of the Stainless Steels. The Stainless 304 B8 Class II S-9 boasts the highest strength among the Stainless Steels, while the 316 B8M Class II S-9 provides the combination of high strength and the highest level of corrosion resistance.
Stainless S-9 Undercut Concrete Anchor
ASTM A193 304 B8 & 316 B8M Class I
Structural Properties
| Yield Stress |
Ultimate Stress |
Elongation in 4 Bar Dia |
Reduction of Area |
|---|---|---|---|
| 30 KSI (207 MPa) |
75 KSI (517 MPa) |
30% min | 50% min |
| Diameter & Threads per Inch |
Maximum Factored Design Load |
Yield Strength (fy) |
Ultimate Strength (fu) |
Drill Hole Diameter |
Minimum Embedment (3000 PSI – f’c) |
Minimum Embedment (6500 PSI – f’c) |
Part Number |
|---|---|---|---|---|---|---|---|
| 1/4” – 20 (6.4 mm) |
0.95 kips (4.23 kN) |
0.95 kips (4.23 kN) |
2.39 kips (10.6 kN) |
5/8” (16 mm) |
2” (51 mm) |
2” (51 mm) |
S9T-02-S4 S9T-02-S6 |
| 3/8” – 16 (9.5 mm) |
2.32 kips (10.3 kN) |
2.32 kips (10.3 kN) |
5.81 kips (25.8 kN) |
7/8” (22 mm) |
4” (102 mm) |
3” (77 mm) |
S9T-03-S4 S9T-03-S6 |
| 1/2” – 13 (13 mm) |
4.26 kips (18.9 kN) |
4.26 kips (18.9 kN) |
10.6 kips (47.3 kN) |
7/8” (22 mm) |
5” (127 mm) |
4” (102 mm) |
S9T-04-S4 S9T-04-S6 |
| 5/8” – 11 (16 mm) |
6.78 kips (30.2 kN) |
6.78 kips (30.2 kN) |
16.9 kips (75.2 kN) |
1-1/8” (29 mm) |
7” (178 mm) |
6” (153 mm) |
S9T-05-S4 S9T-05-S6 |
| 3/4” – 10 (19 mm) |
10.0 kips (44.6 kN) |
10.0 kips (44.6 kN) |
25.1 kips (111 kN) |
1-1/8” (29 mm) |
9” (229 mm) |
7” (178 mm) |
S9T-06-S4 S9T-06-S6 |
| 1” – 8 (25 mm) |
18.2 kips (80.9 kN) |
18.2 kips (80.9 kN) |
45.5 kips (202 kN) |
1-5/8” (41 mm) |
14” (356 mm) |
11” (280 mm) |
S9T-08-S4 S9T-08-S6 |
| 1-1/4” – 7 (32 mm) |
29.1 kips (129 kN) |
29.1 kips (129 kN) |
72.7 kips (323 kN) |
2” (51 mm) |
18” (458 mm) |
14” (356 mm) |
S9T-10-S4 S9T-10-S6 |
| 1-1/2” – 6 (38 mm) |
42.2 kips (188 kN) |
42.2 kips (188 kN) |
105 kips (469 kN) |
2-1/2” (64 mm) |
23” (585 mm) |
18” (458 mm) |
S9T-12-S4 S9T-12-S6 |
These loads are valid where embedment is sufficient to assure steel failure; that is concrete shear cone strength is greater than steel strength.NOTE: 1-1/4” & 1-1/2” diameter SS S-9 – ASTM A193 – 316 B8M Class 2 Max Factored Design Loads are limited to the yield strength per SectionR17.4.1.2 of ACI 318.
304 Stainless S-9 Undercut Concrete Anchor
ASTM A193 304 B8 Class II
Structural Properties
| Diameter Range |
Yield Stress |
Ultimate Stress |
Elongation in 4 Bar Dia |
Reduction of Area |
|---|---|---|---|---|
| 1/4” to 3/4” 6.4 to 19 mm) |
100 KSI (690 MPa) |
125 KSI (862 MPa) |
12% min | 35% min |
| 1” (25 mm) |
80 KSI (552 MPa) |
115 KSI (793 MPa) |
15% min | 35% min |
| 1-1/4” (32 mm) |
65 KSI (448 MPa) |
105 KSI (724 MPa) |
20% min | 35% min |
| 1-1/2” (38 mm) |
50 KSI (375 MPa) |
100 KSI (670 MPa) |
28% min | 45% min |
| Diameter & Threads per Inch |
Maximum Factored Design Load |
Yield Strength (fy) |
Ultimate Strength (fu) |
Drill Hole Diameter |
Minimum Embedment (3000 PSI – f’c) |
Minimum Embedment (6500 PSI – f’c) |
Part Number |
|---|---|---|---|---|---|---|---|
| 1/4” – 20 (6.4 mm) |
2.98 kips (13.3 kN) |
3.18 kips (14.1 kN) |
3.98 kips (17.7 kN) |
5/8” (16 mm) |
3” (77 mm) |
2” (51 mm) |
S9T-02-S42 |
| 3/8” – 16 (9.5 mm) |
7.27 kips (32.3 kN) |
7.75 kips (34.5 kN) |
9.69 kips (43.1 kN) |
7/8” (22 mm) |
5” (127 mm) |
4” (102 mm) |
S9T-03-S42 |
| 1/2” – 13 (13 mm) |
13.3 kips (59.2 kN) |
14.2 kips (63.1 kN) |
17.7 kips (78.9 kN) |
7/8” (22 mm) |
8” (204 mm) |
6” (153 mm) |
S9T-04-S42 |
| 5/8” – 11 (16 mm) |
21.2 kips (94.2 kN) |
22.6 kips (101 kN) |
28.2 kips (126 kN) |
1-1/8” (29 mm) |
10” (254 mm) |
8” (204 mm) |
S9T-05-S42 |
| 3/4” – 10 (19 mm) |
31.3 kips (139 kN) |
33.4 kips (149 kN) |
41.8 kips (186 kN) |
1-1/8” (29 mm) |
13” (331 mm) |
10” (254 mm) |
S9T-06-S42 |
| 1” – 8 (25 mm) |
48.4 kips (215 kN) |
48.4 kips (215 kN) |
69.7 kips (310 kN) |
1-5/8” (41 mm) |
18” (458 mm) |
14” (356 mm) |
S9T-08-S42 |
| 1-1/4” – 7 (32 mm) |
63.0 kips (280 kN) |
63.0 kips (280 kN) |
102 kips (453 kN) |
2” (51 mm) |
23” (585 mm) |
18” (458 mm) |
S9T-10-S42 |
| 1-1/2” – 6 (38 mm) |
70.2 kips (312 kN) |
70.2 kips (312 kN) |
141 kips (625 kN) |
2-1/2” (64 mm) |
28” (712 mm) |
22” (559 mm) |
S9T-12-S42 |
These loads are valid where embedment is sufficient to assure steel failure; that is concrete shear cone strength is greater than steel strength. NOTE: All diameters SS S-9 – ASTM A193 – 304 B8 & 316 B8M Class 1 Max Factored Design Loads are limited to the yield strength per SectionR17.4.1.2 of ACI 318.
316 Stainless S-9 Undercut Concrete Anchor
ASTM A193 304 B8 Class II
Structural Properties
| Diameter Range |
Yield Stress |
Ultimate Stress |
Elongation in 4 Bar Dia |
Reduction of Area |
|---|---|---|---|---|
| 1/4” to 3/4” 6.4 to 19 mm) |
96 KSI (662 MPa) |
110 KSI (759 MPa) |
15% min | 45% min |
| 1” (25 mm) |
80 KSI (552 MPa) |
100 KSI (670 MPa) |
20% min | 45% min |
| 1-1/4” (32 mm) |
65 KSI (448 MPa) |
95 KSI (655 MPa) |
25% min | 45% min |
| 1-1/2” (38 mm) |
50 KSI (375 MPa) |
90 KSI (621 MPa) |
30% min | 45% min |
| Diameter & Threads per Inch |
Maximum Factored Design Load |
Yield Strength (fy) |
Ultimate Strength (fu) |
Drill Hole Diameter |
Minimum Embedment (3000 PSI – f’c) |
Minimum Embedment (6500 PSI – f’c) |
Part Number |
|---|---|---|---|---|---|---|---|
| 1/4” – 20 (6.4 mm) |
2.63 kips (11.7 kN) |
3.05 kips (13.6 kN) |
3.50 kips (15.6 kN) |
5/8” (16 mm) |
3” (77 mm) |
2” (51 mm) |
S9T-02-S62 |
| 3/8” – 16 (9.5 mm) |
6.39 kips (28.4 kN) |
7.44 kips (33.1 kN) |
8.53 kips (37.9 kN) |
7/8” (22 mm) |
5” (127 mm) |
4” (102 mm) |
S9T-03-S62 |
| 1/2” – 13 (13 mm) |
11.7 kips (52.1 kN) |
13.6 kips (60.6 kN) |
15.6 kips (69.4 kN) |
7/8” (22 mm) |
7” (178 mm) |
5” (127 mm) |
S9T-04-S62 |
| 5/8” – 11 (16 mm) |
18.6 kips (82.9 kN) |
21.7 kips (96.5 kN) |
24.9 kips (110 kN) |
1-1/8” (29 mm) |
9” (229 mm) |
7” (178 mm) |
S9T-05-S62 |
| 3/4” – 10 (19 mm) |
27.6 kips (123 kN) |
32.1 kips (143 kN) |
36.7 kips (163 kN) |
1-1/8” (29 mm) |
12” (305 mm) |
9” (229 mm) |
S9T-06-S62 |
| 1” – 8 (25 mm) |
45.4 kips (202 kN) |
48.5 kips (216 kN) |
60.6 kips (269 kN) |
1-5/8” (41 mm) |
16” (407 mm) |
13” (331 mm) |
S9T-08-S62 |
| 1-1/4” – 7 (32 mm) |
63.0 kips (280 kN) |
63.0 kips (280 kN) |
92.0 kips (409 kN) |
2” (51 mm) |
22” (559 mm) |
17” (432 mm) |
S9T-10-S62 |
| 1-1/2” – 6 (38 mm) |
70.2 kips (312 kN) |
70.2 kips (312 kN) |
126 kips (562 kN) |
2-1/2” (64 mm) |
26” (660 mm) |
21” (534 mm) |
S9T-12-S62 |
C2T Stopy-Type & Flange Couplings
| Bar Diameter |
Outside Diameter |
Overall Length |
Stop-Type Part Number |
Flange Coupling | |
|---|---|---|---|---|---|
| Flange Size | Part Number | ||||
| 1/4” (6.4 mm) |
1/2” (13 mm) |
7/8” (22 mm) |
C2T-02 | – | – |
| 3/8” (9.5 mm) |
3/4” (19 mm) |
1-1/2” (38 mm) |
C2T-03 | 2” x 2” (51 x 51 mm) |
C2D-03 |
| 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 |
| 1-3/4” (45 mm) |
2-1/2” (64 mm) |
5-1/2” (140 mm) |
C2T-14 | 4” x 4” (102 x 102 mm) |
C2D-14 |
| 1-7/8” (48 mm) |
2-7/8” (73 mm) |
6” (152 mm) |
C2T-15 | – | – |
| 2” (51 mm) |
3” (76 mm) |
6” (152 mm) |
C2T-16 | – | – |
| 2-1/4” (57 mm) |
3-1/2” (89 mm) |
8” (203 mm) |
C2T-18 | – | – |
H1F Heavy Duty Hex Nuts
| Bar Diameter |
Across Flats |
Across Corners |
Thickness | Part Number |
|---|---|---|---|---|
| 1/4” (6.4 mm) |
1/2” (13 mm) |
0.6” (15 mm) |
15/64” (6 mm) |
H1F-02 |
| 3/8” (9.5 mm) |
11/16” (18 mm) |
0.8” (20 mm) |
23/64” (9 mm) |
H1F-03 |
| 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 |
| 1-3/4” (43 mm) |
2-3/4” (70 mm) |
3.18” (81 mm) |
1-23/32” (44 mm) |
H1F-14 |
| 1-7/8” (48 mm) |
2-15/16” (75 mm) |
3.4” (86 mm) |
1-27/32” (47 mm) |
H1F-15 |
| 2” (51 mm) |
3-1/8” (79 mm) |
3.6” (92 mm) |
1-31/32” (50 mm) |
H1F-16 |
| 2-1/4” (57 mm) |
3-1/2” (89 mm) |
4” (103 mm) |
2-1/4” (57 mm) |
H1F-18 |
R9F Hardened Washers
| Bar Diameter |
Outside Diameter |
Inside Diameter |
Thickness | Part Number |
|---|---|---|---|---|
| 1/4” (6.4 mm) |
5/8” (16 mm) |
9/32” (7 mm) |
1/16” (1.5 mm) |
R9F-02-436 |
| 3/8” (9.5 mm) |
1” (25 mm) |
7/16” (11 mm) |
5/64” (2 mm) |
R9F-03-436 |
| 1/2” (13 mm) |
1-1/16” (27 mm) |
9/16” (14 mm) |
9/64” (3.56 mm) |
R9F-04-436 |
| 5/8” (16 mm) |
1-3/4” (45 mm) |
11/16” (17 mm) |
9/64” (3.6 mm) |
R9F-05-436 |
| 3/4” (19 mm) |
1-15/32” (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) |
1-1/8” (29 mm) |
5/32” (4 mm) |
R9F-08-436 |
| 1-1/8” (29 mm) |
2-1/4” (57 mm) |
1-1/4” (32 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 |
| 1-3/4” (43 mm) |
3-3/8” (86 mm) |
1-7/8” (48 mm) |
7/32” (5.6 mm) |
R9F-14-436 |
| 1-7/8” (48 mm) |
3-3/4” (95 mm) |
2-1/8” (54 mm) |
7/32” (5.6 mm) |
R9F-16-436 |
| 2” (51 mm) |
3-3/4” (95 mm) |
2-1/8” (54 mm) |
7/32” (5.6 mm) |
R9F-16-436 |
| 2-1/4” (57 mm) |
4” (102 mm) |
2-3/8” (60 mm) |
9/32” (7 mm) |
R9F-18-436 |
R8M Beveled Washers
| Bar Diameter |
Outside Diameter |
Inside Diameter |
Thickness | Part Number |
|---|---|---|---|---|
| 1/4” (6.4 mm) |
5/8” (16 mm) |
9/32” (7 mm) |
1/16” (1.5 mm) |
R9F-02-436 |
| 3/8” (9.5 mm) |
1” (25 mm) |
7/16” (11 mm) |
5/64” (2 mm) |
R9F-03-436 |
| 1/2” (13 mm) |
1-1/16” (27 mm) |
9/16” (14 mm) |
9/64” (3.56 mm) |
R9F-04-436 |
| 5/8” (16 mm) |
1-3/4” (45 mm) |
11/16” (17 mm) |
9/64” (3.6 mm) |
R9F-05-436 |
| 3/4” (19 mm) |
1-15/32” (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) |
1-1/8” (29 mm) |
5/32” (4 mm) |
R9F-08-436 |
| 1-1/8” (29 mm) |
2-1/4” (57 mm) |
1-1/4” (32 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 |
| 1-3/4” (43 mm) |
3-3/8” (86 mm) |
1-7/8” (48 mm) |
7/32” (5.6 mm) |
R9F-14-436 |
| 1-7/8” (48 mm) |
3-3/4” (95 mm) |
2-1/8” (54 mm) |
7/32” (5.6 mm) |
R9F-16-436 |
| 2” (51 mm) |
3-3/4” (95 mm) |
2-1/8” (54 mm) |
7/32” (5.6 mm) |
R9F-16-436 |
| 2-1/4” (57 mm) |
4” (102 mm) |
2-3/8” (60 mm) |
9/32” (7 mm) |
R9F-18-436 |
To achieve full strength of the nut, beveled washers must be used in conjunction with a hardened washer.
