Specification
Where to buy| Item | Value |
|---|---|
| Head | flat, 80°-82°, slotted |
| Drive | slot |
| Thread series | Wood screw thread; threads per inch by size (maximum variation ±10 percent) |
| Material | Carbon steel 1010 thru 1022 or 1108 thru 1118 (QQ-S-631, QQ-S-634, QQ-S-637 or QQ-W-405); brass, alloy 260 or 268, quarter-hard (QQ-B-613 or QQ-B-626), or alloy 260 or 270, quarter-hard (QQ-W-321) |
| Item | Value |
|---|---|
| Finish | Steel: cadmium plated (QQ-P-416, Type II, Class 3, or MIL-C-81562, Type II, Class 3) or zinc coated (QQ-Z-325, Type II, Class 3, or MIL-C-81562, Type II, Class 3). Brass: plain, uncoated |
| Procurement | FF-S-111 |
| Status | Check the current issue before design use. Rev. E (15 Aug 1974). Notice 1: cancelled; future acquisitions to refer to (CID) A-A-55605. Notice 2 (1 Feb 1996): reinstated for acquisition. Notice 3 (18 Nov 1999): inactive for new design; used only for replacement purposes. Notices 4 (Sep 2018) and 5 (Dec 2024): remains inactive for new design; valid for use. Sizes 3, 5, 7 and 9 are inactive for new design after 15 Aug 1974. |
Dimensions by size
| Dimension, in | No. 2 | No. 3 | No. 4 | No. 5 | No. 6 | No. 7 | No. 8 | No. 9 | No. 10 | No. 12 | No. 14 | No. 16 | No. 18 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D screw dia | .079 – .090; basic .086 | .092 – .103; basic .099 | .105 – .116; basic .112 | .118 – .129; basic .125 | .131 – .142; basic .138 | .144 – .155; basic .151 | .157 – .168; basic .164 | .170 – .181; basic .177 | .183 – .194; basic .190 | .209 – .220; basic .216 | .235 – .246; basic .242 | .261 – .272; basic .268 | .287 – .298; basic .294 |
| A head dia | .156 – .172; abs min with flat .147 | .181 – .199; abs min with flat .171 | .207 – .225; abs min with flat .195 | .232 – .252; abs min with flat .220 | .257 – .279; abs min with flat .244 | .283 – .305; abs min with flat .268 | .308 – .332; abs min with flat .292 | .334 – .358; abs min with flat .316 | .359 – .385; abs min with flat .340 | .410 – .438; abs min with flat .389 | .461 – .491; abs min with flat .437 | .512 – .544; abs min with flat .485 | .563 – .597; abs min with flat .534 |
| H head height ref | .051 | .059 | .067 | .075 | .083 | .091 | .100 | .108 | .116 | .132 | .148 | .164 | .180 |
| J slot width | .023 – .031 | .027 – .035 | .031 – .039 | .035 – .043 | .039 – .048 | .039 – .048 | .045 – .054 | .045 – .054 | .050 – .060 | .056 – .067 | .064 – .075 | .064 – .075 | .072 – .084 |
| T slot depth | .015 – .023 | .017 – .027 | .020 – .030 | .022 – .034 | .024 – .038 | .027 – .041 | .029 – .045 | .032 – .049 | .034 – .053 | .039 – .060 | .044 – .068 | .049 – .075 | .054 – .083 |
| threads per inch | 26 | 24 | 22 | 20 | 18 | 16 | 15 | 14 | 13 | 11 | 10 | 9 | 8 |
Inches, as tabulated in MS35494 Rev. E Table I; letters as on the standard's drawing. D: basic, maximum and minimum screw diameter.
Part numbers and lengths
Every part number of MS35494 by size and length L; the last column gives the material table and the inactive sizes.
No. 210 part numbers
| Part no. | Length, in | Tol. |
|---|---|---|
| MS35494-1 | .25 | +.00/-.03 |
| MS35494-2 | .38 | +.00/-.03 |
| MS35494-3 | .50 | +.00/-.03 |
| MS35494-4 | .62 | +.00/-.03 |
| MS35494-5 | .75 | +.00/-.05 |
| MS35494-201 | .25 | +.00/-.03 |
| MS35494-202 | .38 | +.00/-.03 |
| MS35494-203 | .50 | +.00/-.03 |
| MS35494-204 | .62 | +.00/-.03 |
| MS35494-205 | .75 | +.00/-.05 |
No. 310 part numbers
| Part no. | Length, in | Tol. |
|---|---|---|
| MS35494-901 | .38 | +.00/-.03 |
| MS35494-902 | .50 | +.00/-.03 |
| MS35494-903 | .62 | +.00/-.03 |
| MS35494-904 | .75 | +.00/-.05 |
| MS35494-905 | .88 | +.00/-.05 |
| MS35494-906 | 1.00 | +.00/-.05 |
| MS35494-910 | .38 | +.00/-.03 |
| MS35494-911 | .50 | +.00/-.03 |
| MS35494-912 | .62 | +.00/-.03 |
| MS35494-913 | .75 | +.00/-.05 |
No. 416 part numbers
| Part no. | Length, in | Tol. |
|---|---|---|
| MS35494-8 | .25 | +.00/-.03 |
| MS35494-9 | .38 | +.00/-.03 |
| MS35494-10 | .50 | +.00/-.03 |
| MS35494-11 | .62 | +.00/-.03 |
| MS35494-12 | .75 | +.00/-.05 |
| MS35494-13 | .88 | +.00/-.05 |
| MS35494-14 | 1.00 | +.00/-.05 |
| MS35494-15 | 1.25 | +.00/-.05 |
| MS35494-16 | 1.50 | +.00/-.05 |
| MS35494-208 | .25 | +.00/-.03 |
| MS35494-209 | .38 | +.00/-.03 |
| MS35494-210 | .50 | +.00/-.03 |
| MS35494-211 | .62 | +.00/-.03 |
| MS35494-212 | .75 | +.00/-.05 |
| MS35494-213 | .88 | +.00/-.05 |
| MS35494-214 | 1.00 | +.00/-.05 |
No. 513 part numbers
| Part no. | Length, in | Tol. |
|---|---|---|
| MS35494-20 | .38 | +.00/-.03 |
| MS35494-21 | .50 | +.00/-.03 |
| MS35494-22 | .62 | +.00/-.03 |
| MS35494-23 | .75 | +.00/-.05 |
| MS35494-24 | .88 | +.00/-.05 |
| MS35494-25 | 1.00 | +.00/-.05 |
| MS35494-26 | 1.25 | +.00/-.05 |
| MS35494-220 | .38 | +.00/-.03 |
| MS35494-221 | .50 | +.00/-.03 |
| MS35494-222 | .62 | +.00/-.03 |
| MS35494-223 | .75 | +.00/-.05 |
| MS35494-224 | .88 | +.00/-.05 |
| MS35494-225 | 1.00 | +.00/-.05 |
No. 620 part numbers
| Part no. | Length, in | Tol. |
|---|---|---|
| MS35494-31 | .38 | +.00/-.03 |
| MS35494-32 | .50 | +.00/-.03 |
| MS35494-33 | .62 | +.00/-.03 |
| MS35494-34 | .75 | +.00/-.05 |
| MS35494-35 | .88 | +.00/-.05 |
| MS35494-36 | 1.00 | +.00/-.05 |
| MS35494-37 | 1.25 | +.00/-.05 |
| MS35494-38 | 1.50 | +.00/-.05 |
| MS35494-39 | 1.75 | +.00/-.06 |
| MS35494-40 | 2.00 | +.00/-.06 |
| MS35494-41 | 2.25 | +.00/-.06 |
| MS35494-42 | 2.50 | +.00/-.06 |
| MS35494-230 | .38 | +.00/-.03 |
| MS35494-231 | .50 | +.00/-.03 |
| MS35494-232 | .62 | +.00/-.03 |
| MS35494-233 | .75 | +.00/-.05 |
| MS35494-234 | .88 | +.00/-.05 |
| MS35494-235 | 1.00 | +.00/-.05 |
| MS35494-236 | 1.25 | +.00/-.05 |
| MS35494-237 | 1.50 | +.00/-.05 |
No. 714 part numbers
| Part no. | Length, in | Tol. |
|---|---|---|
| MS35494-44 | .50 | +.00/-.03 |
| MS35494-45 | .62 | +.00/-.03 |
| MS35494-46 | .75 | +.00/-.05 |
| MS35494-47 | .88 | +.00/-.05 |
| MS35494-48 | 1.00 | +.00/-.05 |
| MS35494-49 | 1.25 | +.00/-.05 |
| MS35494-50 | 1.50 | +.00/-.05 |
| MS35494-242 | .50 | +.00/-.03 |
| MS35494-243 | .62 | +.00/-.03 |
| MS35494-244 | .75 | +.00/-.05 |
| MS35494-245 | .88 | +.00/-.05 |
| MS35494-246 | 1.00 | +.00/-.05 |
| MS35494-247 | 1.25 | +.00/-.05 |
| MS35494-248 | 1.50 | +.00/-.05 |
No. 822 part numbers
| Part no. | Length, in | Tol. |
|---|---|---|
| MS35494-56 | .50 | +.00/-.03 |
| MS35494-57 | .62 | +.00/-.03 |
| MS35494-58 | .75 | +.00/-.05 |
| MS35494-59 | .88 | +.00/-.05 |
| MS35494-60 | 1.00 | +.00/-.05 |
| MS35494-61 | 1.25 | +.00/-.05 |
| MS35494-62 | 1.50 | +.00/-.05 |
| MS35494-63 | 1.75 | +.00/-.06 |
| MS35494-64 | 2.00 | +.00/-.06 |
| MS35494-65 | 2.25 | +.00/-.06 |
| MS35494-66 | 2.50 | +.00/-.06 |
| MS35494-67 | 2.75 | +.00/-.06 |
| MS35494-68 | 3.00 | +.00/-.09 |
| MS35494-253 | .50 | +.00/-.03 |
| MS35494-254 | .62 | +.00/-.03 |
| MS35494-255 | .75 | +.00/-.05 |
| MS35494-256 | .88 | +.00/-.05 |
| MS35494-257 | 1.00 | +.00/-.05 |
| MS35494-258 | 1.25 | +.00/-.05 |
| MS35494-259 | 1.50 | +.00/-.05 |
| MS35494-260 | 1.75 | +.00/-.06 |
| MS35494-261 | 2.00 | +.00/-.06 |
No. 914 part numbers
| Part no. | Length, in | Tol. |
|---|---|---|
| MS35494-69 | .75 | +.00/-.05 |
| MS35494-70 | .88 | +.00/-.05 |
| MS35494-71 | 1.00 | +.00/-.05 |
| MS35494-72 | 1.25 | +.00/-.05 |
| MS35494-73 | 1.50 | +.00/-.05 |
| MS35494-74 | 1.75 | +.00/-.06 |
| MS35494-75 | 2.00 | +.00/-.06 |
| MS35494-77 | 2.50 | +.00/-.06 |
| MS35494-265 | .62 | +.00/-.03 |
| MS35494-266 | .75 | +.00/-.05 |
| MS35494-267 | .88 | +.00/-.05 |
| MS35494-268 | 1.00 | +.00/-.05 |
| MS35494-269 | 1.25 | +.00/-.05 |
| MS35494-270 | 1.50 | +.00/-.05 |
No. 1022 part numbers
| Part no. | Length, in | Tol. |
|---|---|---|
| MS35494-83 | .75 | +.00/-.05 |
| MS35494-84 | .88 | +.00/-.05 |
| MS35494-85 | 1.00 | +.00/-.05 |
| MS35494-86 | 1.25 | +.00/-.05 |
| MS35494-87 | 1.50 | +.00/-.05 |
| MS35494-88 | 1.75 | +.00/-.06 |
| MS35494-89 | 2.00 | +.00/-.06 |
| MS35494-90 | 2.25 | +.00/-.06 |
| MS35494-91 | 2.50 | +.00/-.06 |
| MS35494-92 | 2.75 | +.00/-.06 |
| MS35494-93 | 3.00 | +.00/-.09 |
| MS35494-94 | 3.50 | +.00/-.09 |
| MS35494-275 | .62 | +.00/-.03 |
| MS35494-276 | .75 | +.00/-.05 |
| MS35494-277 | .88 | +.00/-.05 |
| MS35494-278 | 1.00 | +.00/-.05 |
| MS35494-279 | 1.25 | +.00/-.05 |
| MS35494-280 | 1.50 | +.00/-.05 |
| MS35494-281 | 1.75 | +.00/-.06 |
| MS35494-282 | 2.00 | +.00/-.06 |
| MS35494-283 | 2.25 | +.00/-.06 |
| MS35494-284 | 2.50 | +.00/-.06 |
No. 1224 part numbers
| Part no. | Length, in | Tol. |
|---|---|---|
| MS35494-98 | .75 | +.00/-.05 |
| MS35494-99 | .88 | +.00/-.05 |
| MS35494-100 | 1.00 | +.00/-.05 |
| MS35494-101 | 1.25 | +.00/-.05 |
| MS35494-102 | 1.50 | +.00/-.05 |
| MS35494-103 | 1.75 | +.00/-.06 |
| MS35494-104 | 2.00 | +.00/-.06 |
| MS35494-105 | 2.25 | +.00/-.06 |
| MS35494-106 | 2.50 | +.00/-.06 |
| MS35494-107 | 2.75 | +.00/-.06 |
| MS35494-108 | 3.00 | +.00/-.09 |
| MS35494-109 | 3.50 | +.00/-.09 |
| MS35494-110 | 4.00 | +.00/-.09 |
| MS35494-289 | .75 | +.00/-.05 |
| MS35494-290 | .88 | +.00/-.05 |
| MS35494-291 | 1.00 | +.00/-.05 |
| MS35494-292 | 1.25 | +.00/-.05 |
| MS35494-293 | 1.50 | +.00/-.05 |
| MS35494-294 | 1.75 | +.00/-.06 |
| MS35494-295 | 2.00 | +.00/-.06 |
| MS35494-296 | 2.25 | +.00/-.06 |
| MS35494-297 | 2.50 | +.00/-.06 |
| MS35494-299 | 3.00 | +.00/-.09 |
| MS35494-300 | 3.50 | +.00/-.09 |
No. 1420 part numbers
| Part no. | Length, in | Tol. |
|---|---|---|
| MS35494-113 | 1.00 | +.00/-.05 |
| MS35494-114 | 1.25 | +.00/-.05 |
| MS35494-115 | 1.50 | +.00/-.05 |
| MS35494-116 | 1.75 | +.00/-.06 |
| MS35494-117 | 2.00 | +.00/-.06 |
| MS35494-118 | 2.25 | +.00/-.06 |
| MS35494-119 | 2.50 | +.00/-.06 |
| MS35494-120 | 2.75 | +.00/-.06 |
| MS35494-121 | 3.00 | +.00/-.09 |
| MS35494-122 | 3.50 | +.00/-.09 |
| MS35494-123 | 4.00 | +.00/-.09 |
| MS35494-124 | 4.50 | +.00/-.09 |
| MS35494-125 | 5.00 | +.00/-.09 |
| MS35494-305 | 1.00 | +.00/-.05 |
| MS35494-306 | 1.25 | +.00/-.05 |
| MS35494-307 | 1.50 | +.00/-.05 |
| MS35494-308 | 1.75 | +.00/-.06 |
| MS35494-309 | 2.00 | +.00/-.06 |
| MS35494-311 | 2.50 | +.00/-.06 |
| MS35494-313 | 3.00 | +.00/-.09 |
No. 1614 part numbers
| Part no. | Length, in | Tol. |
|---|---|---|
| MS35494-129 | 1.25 | +.00/-.05 |
| MS35494-130 | 1.50 | +.00/-.05 |
| MS35494-131 | 1.75 | +.00/-.06 |
| MS35494-132 | 2.00 | +.00/-.06 |
| MS35494-134 | 2.50 | +.00/-.06 |
| MS35494-135 | 2.75 | +.00/-.06 |
| MS35494-136 | 3.00 | +.00/-.09 |
| MS35494-137 | 3.50 | +.00/-.09 |
| MS35494-138 | 4.00 | +.00/-.09 |
| MS35494-139 | 4.50 | +.00/-.09 |
| MS35494-140 | 5.00 | +.00/-.09 |
| MS35494-318 | 2.00 | +.00/-.06 |
| MS35494-320 | 2.50 | +.00/-.06 |
| MS35494-322 | 3.00 | +.00/-.09 |
No. 186 part numbers
| Part no. | Length, in | Tol. |
|---|---|---|
| MS35494-142 | 1.50 | +.00/-.05 |
| MS35494-144 | 2.00 | +.00/-.06 |
| MS35494-146 | 2.50 | +.00/-.06 |
| MS35494-148 | 3.00 | +.00/-.09 |
| MS35494-149 | 3.50 | +.00/-.09 |
| MS35494-150 | 4.00 | +.00/-.09 |
Part number
What each code means
| Part | Meaning |
|---|---|
| Format | MS35494-<dash number> |
| Example | MS35494-1 |
| Length tolerance, .25 to .62 | +.00/-.03 |
| Length tolerance, .75 to 1.50 | +.00/-.05 |
| Length tolerance, 1.75 to 2.75 | +.00/-.06 |
| Length tolerance, 3.00 to 5.00 | +.00/-.09 |
| Dash | Dash number from Table II (steel, cadmium or zinc plated) or Table III (brass, plain) selects size, length and material |
Notes from the standard
- Threaded length approximately 2/3 L. Head angle 80° - 82°; the head edge may be rounded (A abs min with flat).
- Slotted head: J slot width and T slot depth by size.
- Dash numbers of sizes 3, 5, 7 and 9 are inactive for new design after 15 August 1974 (crossed out in Tables II and III).
- Supersedes AN550 in part. Steel cadmium plated screws of revision A and brass black oxide coated screws of revision B were cancelled in 1967 and 1968; Table IV of the standard gives their replacements.
- Part number: the MS number plus the dash number, for example MS35494-1.
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Calculators
Guides
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Data sheets
Books
Sources
- MS35494 Rev. E, 15 Aug 1974 — Screw, Wood, Flat Head, Slotted, Steel and Brass — dimensions, part numbers and notes. Public domain, distribution unlimited. Notices: 1 Notice 1: cancelled; future acquisitions to refer to (CID) A-A-55605.; 2 Notice 2 (1 Feb 1996): reinstated for acquisition.; 3 Notice 3 (18 Nov 1999): inactive for new design; used only for replacement purposes.; 4 Notices 4 (Sep 2018) and 5 (Dec 2024): remains inactive for new design; valid for use.
Educational reference only. not approved data. Always consult the applicable SRM, AMM, or AC 43.13-1B and your certifying authority.