{"id":6074,"date":"2025-09-01T08:33:38","date_gmt":"2025-09-01T05:33:38","guid":{"rendered":"https:\/\/asturawsmd.com\/handbook-threads\/"},"modified":"2025-09-01T08:43:42","modified_gmt":"2025-09-01T05:43:42","slug":"handbook-threads","status":"publish","type":"page","link":"https:\/\/asturawsmd.com\/en\/handbook-threads\/","title":{"rendered":"Handbook: threads"},"content":{"rendered":"\n

Table for determining the type of thread<\/h2>\n\n

In order to determine the type of thread on the barrel of your rifle, you will need a caliper.It is necessary to measure the thread diameter in millimeters as accurately as possible, and then use this table.How to correctly measure with a caliper is shown in the photo:<\/p>\n\n

\"\"<\/a><\/figure>\n\n

<\/p>\n\n

Outer diameter, mm<\/th>Inner diameter, mm<\/th>Thread pitch, turns per inch<\/th>Thread pitch<\/th>BSP<\/th>Metrics <\/th>Inch UNF<\/th>Inch NPT<\/th><\/tr><\/thead>
9,3-9,7<\/td>8,5-8,9<\/td>28<\/td>\u00a0<\/td>1\/8″<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
9,3-9,7<\/td>8,5-8,9<\/td>27<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>1\/8″<\/td><\/tr>
9,7-9,9<\/td>8,2-8,6<\/td>\u00a0<\/td>1,5<\/td>\u00a0<\/td>M10x1,5<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
10,9-11,1<\/td>9,7-10,0<\/td>20<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>7\/16″-20<\/td>\u00a0<\/td><\/tr>
11,6-11,9<\/td>10,2-10,6<\/td>\u00a0<\/td>1,5<\/td>\u00a0<\/td>M12x1,5<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
12,4-12,7<\/td>11,3-11,6<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>1\/2″-20<\/td>\u00a0<\/td><\/tr>
12,9-13,1<\/td>11,4-11,9<\/td>19<\/td>\u00a0<\/td>1\/4″<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
12,9-13,1<\/td>11,4-11,9<\/td>18<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>1\/4″<\/td><\/tr>
13,6-13,9<\/td>12,2-12,6<\/td>\u00a0<\/td>1,5<\/td>\u00a0<\/td>M14x1,5<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
14,0-14,3<\/td>12,7-13,0<\/td>18<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>9\/16″-18<\/td>\u00a0<\/td><\/tr>
15,6-15,9<\/td>14,2-14,6<\/td>\u00a0<\/td>1,5<\/td>\u00a0<\/td>M16x1,5<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
16,3-16,6<\/td>14,9-15,4<\/td>19<\/td>\u00a0<\/td>3\/8″<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
16,3-16,6<\/td>14,9-15,4<\/td>18<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>3\/8″<\/td><\/tr>
17,6-17,9<\/td>16,2-16,6<\/td>\u00a0<\/td>1,5<\/td>\u00a0<\/td>M18x1,5<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
18,7-19,0<\/td>17,3-17,6<\/td>16<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>3\/4″-16<\/td>\u00a0<\/td><\/tr>
19,6-19,9<\/td>18,2-18,6<\/td>\u00a0<\/td>1,5<\/td>\u00a0<\/td>M20x1,5<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
20,5-20,9<\/td>18,6-19,0<\/td>14<\/td>\u00a0<\/td>1\/2″<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
20,7-21,1<\/td>18,3-18,7<\/td>14<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>1\/2″<\/td><\/tr>
21,6-21,9<\/td>20,2-20,6<\/td>\u00a0<\/td>1,5<\/td>\u00a0<\/td>M22x1,5<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
22,0-22,2<\/td>20,2-20,5<\/td>14<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>7\/8″-14<\/td>\u00a0<\/td><\/tr>
22,6-22,9<\/td>20,6-21,0<\/td>14<\/td>\u00a0<\/td>5\/8″<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
23,6-23,9<\/td>22,2-22,6<\/td>\u00a0<\/td>1,5<\/td>\u00a0<\/td>M24x1,5<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
25,6-25,9<\/td>24,2-24,6<\/td>\u00a0<\/td>1,5<\/td>\u00a0<\/td>M26x1,5<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
26,1-26,4<\/td>24,1-24,5<\/td>14<\/td>\u00a0<\/td>3\/4″<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
26,3-26,7<\/td>23,7-24,1<\/td>14<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>3\/4″<\/td><\/tr>
26;6-26,9<\/td>24,3-24,7<\/td>12<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>1,1\/16″-12<\/td>\u00a0<\/td><\/tr>
29,6-29,9<\/td>27,4-27,8<\/td>\u00a0<\/td>2<\/td>\u00a0<\/td>M30x2<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
29,8-30,1<\/td>27,6-27,9<\/td>12<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>1,3\/16″-12<\/td>\u00a0<\/td><\/tr>
29,6-29,9<\/td>28,2-28,6<\/td>\u00a0<\/td>1,5<\/td>\u00a0<\/td>M30x1,5<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
32,6-32,9<\/td>30,5-30,9<\/td>\u00a0<\/td>2<\/td>\u00a0<\/td>M33x2<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
33,0-33,2<\/td>30,3-30,8<\/td>11<\/td>\u00a0<\/td>1″<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
33,0-33,3<\/td>30,8-31,2<\/td>12<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>1,5\/16″-12<\/td>\u00a0<\/td><\/tr>
32,9-33,4<\/td>30,3-30,8<\/td>11,5<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>1″<\/td><\/tr>
35,6-35,9<\/td>33,4-33,8<\/td>\u00a0<\/td>2<\/td>\u00a0<\/td>M36x2<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
37,6-37,9<\/td>36,2-36,6<\/td>\u00a0<\/td>1,5<\/td>\u00a0<\/td>M38x1,5<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
40,9-41,2<\/td>38,7-39,1<\/td>12<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>1,5\/8″-12<\/td>\u00a0<\/td><\/tr>
41,6-41,9<\/td>39,4-39,8<\/td>\u00a0<\/td>2<\/td>\u00a0<\/td>M42x2<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
41,5-41,9<\/td>39,0-39,5<\/td>11<\/td>\u00a0<\/td>1,1\/4″<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
41,4-42,0<\/td>39,2-39,6<\/td>11,5<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>1,1\/4″<\/td><\/tr>
44,6-44,9<\/td>42,4-42,8<\/td>\u00a0<\/td>2<\/td>\u00a0<\/td>M45x2<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
44,6-44,9<\/td>43,2-43,6<\/td>\u00a0<\/td>1,5<\/td>\u00a0<\/td>M45x1,5<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
47,3-47,6<\/td>45,1-45,5<\/td>12<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>1,7\/8″-12<\/td>\u00a0<\/td><\/tr>
47,4-47,8<\/td>44,8-45,3<\/td>11<\/td>\u00a0<\/td>1,1\/2″<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
47,3-47,9<\/td>45,1-45,5<\/td>11,5<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>1,1\/2″<\/td><\/tr>
51,6-51,9<\/td>49,4-49,6<\/td>\u00a0<\/td>2<\/td>\u00a0<\/td>M52x2<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
51,6-51,9<\/td>50,2-50,6<\/td>\u00a0<\/td>1,5<\/td>\u00a0<\/td>M52x1,5<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
59,4-59,8<\/td>56,5-56,8<\/td>11<\/td>\u00a0<\/td>2″<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td><\/tr>
59,9-60,2<\/td>56,4-56,7<\/td>11,5<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>2″<\/td><\/tr>
63,3-63,6<\/td>61,3-61,8<\/td>12<\/td>\u00a0<\/td>\u00a0<\/td>\u00a0<\/td>2,1\/2″-12<\/td>\u00a0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n
Download table<\/a><\/div>\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Table for determining the type of thread In order to determine the type of thread on the barrel of your…<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-fullwidth.php","meta":{"pgc_sgb_lightbox_settings":"","footnotes":""},"class_list":["post-6074","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/asturawsmd.com\/en\/wp-json\/wp\/v2\/pages\/6074","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/asturawsmd.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/asturawsmd.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/asturawsmd.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/asturawsmd.com\/en\/wp-json\/wp\/v2\/comments?post=6074"}],"version-history":[{"count":0,"href":"https:\/\/asturawsmd.com\/en\/wp-json\/wp\/v2\/pages\/6074\/revisions"}],"wp:attachment":[{"href":"https:\/\/asturawsmd.com\/en\/wp-json\/wp\/v2\/media?parent=6074"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}