1、TABLE I - NOMINAL SIZE .138 .164 .140 I .250 ,3125 .375 15 M -31 .36 .42 .55 .70 -83 MIN .29 .34 .40 .52 .67 .o0 - THREADS PER INCH (UtiC-2A) 32 32 24 20 18 A HEADWIDTH I I MAX .O5 .O6 .O6 .O7 .o9 .ll MIN .O4 .O5 .O5 .os .o7 .o9 C HEAD THICKWESS DIAFTER OF FLAT XI, I :ti I .O9 I .10 I .13 I .17 .O8
2、o9 .12 .16 L LEIICTH TOLERA!CE (DASH NO. IDASH NO. I DASH no. I DASH NO. IDASH NO. IDASH tio. I .25 1 .38 22 .62 24 34 .75 5 15 25 35 45 56 1 .o3 26 36 46 57 .so *.o3 3 13 23 33 43 1 1.50 2.03 2.06 I I I I I I 2.50 39 49 60 3.00 f.o9 50 61 NOTES: 1. IUTERIAL: 2. Carbon steel in accordance with Fed.
3、 Std. tio. 66 having a inian Ultirte tensile strength of 49,000 PSI. PROTECTIVE COATIXG: Cadmium plated in accordance with W-P-416, me II. Class 3 or N11-C-81562, Type II, Clair 3. . 3. THREADS: The threads shall be in accordance vitb Screw-Thread Standards for Federal Services Handbook H28. and sha
4、ll be within 2-1/2 threads of the rboulder bearing aurface. Pull form threads shall extend as close to the shoulder a8 practiobie 4. 5. DIMESSIONS: All dimensions in Table I are in inches. 6. 7. Referenced documents shall be of the issue in effect on 39 IhTERCHfrHGEAEILIT Thumbscrews covered by the
5、following dash numbers given in US21317 are canceled after 16 Feb-ruarg Use only the new dash numbers for neu design and replacenent. 1967. The canceled thumbscrew cannat always replace the neu ones and should be used until eristing stocka are drplctrd. shall be in accordance with Table III. Replace
6、ment TABLE III PART hTHBER II PART NXBER II PART hM8ER PART !maut CLVCELED MS21317 M521316 66 67 58 CANCELED 1 NEli I I CANCELED I NEU I I CANCELED I NEW MS21317 I MS21316 I I MC21317 I WSZ1316 I I YS21317 I MS21316 1 2 3 4 5 6 15 16 17 18 19 28 1 3 5 13 15 22 * * 29 30 31 32 33 34 35 42 43 44 45 46
7、 37 38 39 * 43 45 46 * 47 48 49 50 23 47 24 48 49 50 25 . 26 * 53 27 54 28 55 33 56 34 57 35 SE 36 59 * 60 70 75 I i 79 80 * * No replacement L IdL L woo 4 CARaON STEEL,CADMIUM PLATED,UNG-2A L YC TnLt U& YD THUMBSCREW (SHOULDERED ) ,FLAT POINT, .4 ecE 82 d nrn 1.- se CU e c o* Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
