dti installation sheets
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Specifications for Flat Washers Compatible with Standard DTI's or Squirter
DTI's Between the Nut and the DTI Bumps, and for Flat Washers Compatible
with Squirter® DTI's Between the Squirter® DTI and an Oversized or Short
Slotted Hole
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|
|
See the Application Advisory regarding Squirter®
DTIs and Oversized or Short Slotted Holes - click
here
To see more on flat washer requirements please click
here
The flat washer under the nut must have an ID close
to squirter® DTI, and an OD slightly smaller
The flat washer over the hole must have an ID close
to squirter® DTI, but an OD slightly larger
|
See an example. Download the self-executable eDrawings:
1. 7/8" A325 in oversized holes
download
eDrawing
(2.5M .exe)
2. 1 1/4" A490 in oversized holes
download
eDrawing
(2.5M .exe)
|
| Item |
Washer
name, Feature |
Flat washer requirements for use with Squirter® DTI's
on Oversized or Short Slotted Holes - A325 Bolts |
|
BOLT
DIAMETER, GRADE ASTM A325 |
|
3/4" |
7/8" |
1" |
1
1/8 " |
1
1/4" |
1
3/8" |
1
1/2" |
 Flat
Washer Under Nut(either ASTM F436 or SAE over the DTI bumps)
|
F436
size |
3/4" |
7/8" |
1" |
1 1/8 " |
N/A |
1 1/4" |
1
3/8 " |
| F436
ID |
13/16" |
15/16" |
1
1/16" |
1
3/16" |
N/A |
1 3/8" |
1
1/2" |
| F436
OD |
1
15/32" |
1
3/4" |
2" |
2" |
N/A |
2 1/2" |
2
3/4 " |
| F436
Thickness |
STD
F436 |
STD
F436 |
STD
F436 |
STD
F436 |
N/A |
STD F436 |
STD
F436 |
| SAE
Size** |
SAE
3/4" |
SAE
7/8 " |
SAE
1 " |
SAE
1-1/8 " |
SAE
1-1/8" |
SAE
1-1/4" |
SAE
1-3/8 " |
| |
|
|
|
|
|
|
|
|
| DTI |
OD |
1-5/8" |
1-7/8" |
2" |
2-1/4" |
2-1/2" |
2-3/4" |
3" |
| |
|
|
|
|
|
|
|
|
 USS or Special Flat Washer between Squirter® DTI and Oversized or Short
Slotted Hole |
size
& type **** |
3/4"
USS |
|
1"
USS |
1
1/8 "
USS |
1
1/4 "
USS |
1
3/8"
USS |
1 1/2"
USS |
| name |
|
|
|
| 118 USS Special ID, Std Thickness, Hard |
|
|
| 114 USS Special ID, Std Thickness, Hard |
|
|
| 138 USS Special ID, Std Thickness, Hard |
|
|
| 112 USS Special ID, Std Thickness, Hard |
|
|
| part # |
|
|
|
|
|
|
|
| ID* |
13/16"
|
15/16"
|
1
1/16" |
1 1/8"
|
1
1/4" |
1
3/8" |
1
1/2" |
| OD |
2"
|
2 1/4" |
2
1/2" |
2
3/4" |
3" |
3 1/4" |
3
1/2" |
| Thickness*** |
STD
F436 |
STD
F436 |
.136"MIN |
.136"MIN |
.136"MIN |
.136"MIN |
.153" MIN |
eDrawing |
|
download
eDrawing
(2.5M .exe) |
|
|
|
|
|
*
|
+.015"-.000" |
|
**
|
SAE
washer have a tighter ID than ASTM F436 washers, and therefore fit
better. SAE washers are available both hardened and unhardened. Use
ONLY hardened SAE washers over DTI bumps. Sae washer dimensions are
made to ANSI B 18.22.1 |
| *** |
per ASTM F436 |
|
**** |
USS
washers have a tighter ID and OD sufficiently bigger than the DTI.
USS flat washers are available both hardened and unhardened. Use ONLY
hardened under the Squirter® DTI. USS washer dimensions are made to
ANSI B18.22.1 |
| Item |
Washer
name, Feature |
Flat washer requirements for use with Squirter® DTI's
on Oversized or Short Slotted Holes - A490 Bolts |
|
BOLT
DIAMETER, GRADE ASTM A490 |
|
3/4" |
7/8" |
1" |
1
1/8 " |
1
1/4" |
1 3/8" |
1
1/2" |
Flat
Washer Under Nut(either ASTM F436 or SAE over the DTI bumps)
|
F436
size |
3/4" |
7/8" |
1" |
1 1/8 " |
N/A |
1 1/4" |
1
3/8 " |
| F436
ID |
13/16" |
15/16" |
1
1/16" |
1
3/16" |
N/A |
1 3/8" |
1
1/2" |
| F436
OD |
1
15/32" |
1
3/4" |
2" |
2" |
N/A |
2 1/8" |
2
3/4 " |
| F436
Thickness |
STD
F436 |
STD
F436 |
STD
F436 |
STD
F436 |
N/A |
STD F436 |
STD
F436 |
| SAE
Size** |
SAE
3/4" |
SAE
7/8 " |
SAE
1 " |
SAE
1-1/8 " |
SAE
1-1/8" |
SAE
1-1/4" |
SAE
1-3/8 " |
| |
|
|
|
|
|
|
|
|
| DTI |
OD |
1-3/4" |
2" |
2
1/4 " |
2
1/2 " |
2
3/4 " |
3 " |
3
1/4 " |
| |
|
|
|
|
|
|
|
|
USS or Special Flat Washer between Squirter® DTI and Oversized or Short
Slotted Hole |
size
& type **** |
3/4"
USS |
|
1"
USS |
|
|
|
|
| name |
|
|
|
| 118 USS Special ID, Special Thickness, Hard |
|
| 114 USS Special ID, Special Thickness, Hard |
|
| 138 USS Special ID, Special Thickness, Hard |
|
| 112 USS Special ID, Special Thickness, Hard |
|
| part # |
|
|
|
|
|
|
|
| ID* |
13/16"
|
15/16"
|
1
1/16 " |
1 1/8"
|
1
1/4 " |
1
3/8 " |
1
1/2 " |
| OD |
2"
|
2 1/4" |
2
1/2" |
2
3/4 " |
3" |
3 1/4 " |
3
1/2" |
| |
|
|
|
|
|
|
|
| Thickness*** |
.122"MIN |
.136"MIN |
.136"MIN |
5/16" |
5/16" |
|
|
| |
or
plate washer - see RCSC rules |
eDrawing |
|
|
|
|
|
|
|
|
*
|
+.015"-.000" |
**
|
SAE
washer have a tighter ID than ASTM F436 washers, and therefore fit
better. SAE washers are available both hardened and unhardened. Use
ONLY hardened SAE washers over DTI bumps. Sae washer dimensions are
made to ANSI B 18.22.1 |
| *** |
per ASTM F436 |
|
**** |
USS
washers have a tighter ID and OD sufficiently bigger than the DTI.
USS flat washers are available both hardened and unhardened. Use ONLY
hardened under the Squirter® DTI. USS washer dimensions are made to
ANSI B18.22.1 |
|
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APPLICATION ADVISORIES |
