{"id":429,"date":"2026-01-30T03:16:04","date_gmt":"2026-01-30T03:16:04","guid":{"rendered":"https:\/\/www.jccncmachining.com\/?post_type=process&p=429"},"modified":"2026-11-05T13:34:00","modified_gmt":"2026-11-05T05:34:00","slug":"%e3%82%a4%e3%83%b3%e3%83%81%e3%81%ad%e3%81%98","status":"publish","type":"process","link":"https:\/\/www.jccncmachining.com\/ja\/%e6%a9%9f%e8%83%bd\/%e3%82%a4%e3%83%b3%e3%83%81%e3%81%ad%e3%81%98\/","title":{"rendered":"\u30a4\u30f3\u30c1\u306d\u3058"},"content":{"rendered":"

<\/p>\n

\n

\u4e3b\u306a\u4ed5\u69d8<\/h3>\n\n\n\n\n\n\n\n\n\n\n
\u4ed5\u69d8<\/th>\n\u6280\u8853\u7bc4\u56f2<\/th>\n\u5099\u8003<\/th>\n<\/tr>\n<\/thead>\n
\u306d\u3058\u7bc4\u56f2<\/strong><\/td>\n#0-80\uff5e6.0\u30a4\u30f3\u30c1<\/td>\n\u5c0f\u578b\u8a08\u5668\u306d\u3058\u304b\u3089\u5927\u578b\u30d1\u30a4\u30d7\u307e\u3067<\/td>\n<\/tr>\n
\u6a19\u6e96\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb<\/strong><\/td>\nASME B1.1\uff0860\u00b0V\u306d\u3058\uff09<\/td>\nTPI\uff081\u30a4\u30f3\u30c1\u3042\u305f\u308a\u306e\u306d\u3058\u5c71\u6570\uff09\u3067\u6e2c\u5b9a<\/td>\n<\/tr>\n
\u516c\u5dee\u30af\u30e9\u30b9<\/strong><\/td>\n1A\/1B\u30012A\/2B\u30013A\/3B<\/td>\n3A\/3B\u304c\u6700\u3082\u53b3\u3057\u3044\uff08\u822a\u7a7a\u5b87\u5b99\uff09<\/td>\n<\/tr>\n
\u30b7\u30ea\u30fc\u30ba<\/strong><\/td>\nUNC\uff08\u4e26\u76ee\uff09\u3001UNF\uff08\u7d30\u76ee\uff09\u3001UNEF\uff08\u6975\u7d30\u76ee\uff09<\/td>\nUNJ\uff08\u5236\u5fa1\u30eb\u30fc\u30c8\u534a\u5f84\uff09<\/td>\n<\/tr>\n
\u52a0\u5de5\u65b9\u6cd5<\/strong><\/td>\n\u30b7\u30f3\u30b0\u30eb\u30dd\u30a4\u30f3\u30c8\u3001\u30bf\u30c3\u30d7\u52a0\u5de5\u3001\u306d\u3058\u30d5\u30e9\u30a4\u30b9\u52a0\u5de5<\/td>\n\u306d\u3058\u30b5\u30a4\u30ba\u306b\u3088\u308b<\/td>\n<\/tr>\n
\u691c\u8a3c<\/strong><\/td>\n\u901a\u3057\/\u6b62\u307e\u308a\u30ea\u30f3\u30b0\u30b2\u30fc\u30b8\uff06\u30d7\u30e9\u30b0\u30b2\u30fc\u30b8<\/td>\n\u30b7\u30b9\u30c6\u30e021\u307e\u305f\u306f22\u30b2\u30fc\u30b8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

\n

\u30a4\u30f3\u30c1\u306d\u3058\u30b7\u30ea\u30fc\u30ba<\/h3>\n\n\n\n\n\n\n\n
\u30b7\u30ea\u30fc\u30ba<\/th>\n\u8aac\u660e<\/th>\n\u4e3b\u306a\u5229\u70b9\u3068\u7528\u9014<\/th>\n<\/tr>\n<\/thead>\n
UNC\uff08\u7d71\u4e00\u4e26\u76ee\u306d\u3058\uff09<\/strong><\/td>\n\u6700\u3082\u4e00\u822c\u7684\u306a\u6c4e\u7528\u306d\u3058\u30021\u30a4\u30f3\u30c1\u3042\u305f\u308a\u306e\u306d\u3058\u5c71\u6570\u304c\u5c11\u306a\u3044\uff08\u4f8b\uff1a1\/4\u2033-20\uff09\u3002.<\/td>\n\u5229\u70b9\uff1a<\/strong> \u7d44\u307f\u7acb\u3066\u304c\u901f\u304f\u3001\u306d\u3058\u306e\u98df\u3044\u9055\u3044\u304c\u8d77\u3053\u308a\u306b\u304f\u304f\u3001\u8efd\u5fae\u306a\u640d\u50b7\u306b\u5f37\u3044\u3002.
\n\u7528\u9014\uff1a<\/strong> \u4e00\u822c\u5efa\u7bc9\u3001\u6a5f\u68b0\u7b50\u4f53\u3001\u30d6\u30e9\u30b1\u30c3\u30c8\u3002.<\/td>\n<\/tr>\n
UNF\uff08\u7d71\u4e00\u7d30\u76ee\u306d\u3058\uff09<\/strong><\/td>\n1\u30a4\u30f3\u30c1\u3042\u305f\u308a\u306e\u306d\u3058\u5c71\u6570\u304c\u591a\u3044\uff08\u4f8b\uff1a1\/4\u2033-28\uff09\u3002\u5f15\u5f35\u5fdc\u529b\u9762\u7a4d\u304c\u5927\u304d\u3044\u3002.<\/td>\n\u5229\u70b9\uff1a<\/strong> UNC\u3088\u308a\u5f37\u5ea6\u304c\u9ad8\u304f\u3001\u5fae\u8abf\u6574\u306b\u9069\u3057\u3001\u632f\u52d5\u306b\u3088\u308b\u7de9\u307f\u306b\u5f37\u3044\u3002.
\n\u7528\u9014\uff1a<\/strong> \u81ea\u52d5\u8eca\u306e\u99c6\u52d5\u7cfb\u3001\u7cbe\u5bc6\u6a5f\u5668\u3002.<\/td>\n<\/tr>\n
UNJ\uff08\u822a\u7a7a\u5b87\u5b99\u7528\uff09<\/strong><\/td>\n\u5fdc\u529b\u96c6\u4e2d\u3092\u4f4e\u6e1b\u3059\u308b\u305f\u3081\u3001\u5927\u304d\u304f\u7ba1\u7406\u3055\u308c\u305f\u8c37\u5e95\u534a\u5f84\u3092\u6301\u3064UN\u306d\u3058\u306e\u5909\u7a2e\u3002.<\/td>\n\u5229\u70b9\uff1a<\/strong> \u91cd\u8981\u306a\u98db\u884c\u90e8\u54c1\u306e\u75b2\u52b4\u5f37\u5ea6\u3092\u6700\u5927\u5316\u3059\u308b\u3002.
\n\u7528\u9014\uff1a<\/strong> \u822a\u7a7a\u5b87\u5b99\u7528\u30dc\u30eb\u30c8\u3001\u30a8\u30f3\u30b8\u30f3\u90e8\u54c1\uff08AS8879\u898f\u683c\uff09\u3002.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

\n

\u30a4\u30f3\u30c1\u306d\u3058\u306e\u8a2d\u8a08\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/h3>\n

\u306f\u3081\u3042\u3044\u7b49\u7d1a\uff08\u516c\u5dee\uff09\uff1a<\/strong>
\nClass 2A\/2B:<\/strong> The industrial standard. Allows for plating buildup and easy assembly.
\nClass 3A\/3B:<\/strong> Zero clearance fit. Used for high-precision applications. \u30d2\u30f3\u30c8:<\/strong> Do not specify Class 3 if you plan to plate the part heavily, or the screw won’t fit.<\/p>\n

Plating Allowance<\/a>:<\/strong>
\nImperial threads are often plated (Zinc\/Cadmium). Plating adds thickness (4x the plating thickness on the pitch diameter). \u30d2\u30f3\u30c8:<\/strong> We machine “pre-plate” threads slightly undersized (external) or oversized (internal) to accommodate the coating.<\/p>\n

TPI vs. Pitch:<\/strong>
\nRemember that Imperial threads are defined by “Threads Per Inch” (TPI), not the distance between threads. A higher number means a finer thread (opposite of metric<\/a>).<\/p>\n

UNJ Root Radius:<\/strong>
\nIf designing for Aerospace, ensure you specify UNJ<\/strong> (e.g., UNJF). This requires us to use specialized inserts with a larger nose radius. A standard UN tool will create a stress riser that can fail certification.<\/p>\n<\/div>\n

<\/p>\n

\n

\u696d\u754c\u5225\u7528\u9014<\/h3>\n

\u822a\u7a7a\u5b87\u5b99\u30fb\u9632\u885b<\/strong>
\n\u5f93\u6765\u306e\u898f\u683c\uff08Mil-Spec\/NAS\uff09\u304a\u3088\u3073\u53b3\u3057\u3044\u75b2\u52b4\u8981\u4ef6\u306e\u305f\u3081\u3001\u307b\u307c\u5c02\u3089\u30a4\u30f3\u30c1\u306d\u3058\uff08UNF\/UNJ\uff09\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002.<\/p>\n

\u77f3\u6cb9\u30fb\u30ac\u30b9<\/strong>
\n\u6398\u524a\u6a5f\u5668\u3084\u30d0\u30eb\u30d6\u3067\u306f\u3001\u9ad8\u8ca0\u8377\u63a5\u7d9a\u7528\u306b\u5927\u5f84\u306e\u4e26\u76ee\uff08UNC\uff09\u307e\u305f\u306f\u7279\u6b8a\u306a8\u5c71\u30b7\u30ea\u30fc\u30ba\uff088-UN\uff09\u304c\u3057\u3070\u3057\u3070\u7528\u3044\u3089\u308c\u307e\u3059\u3002.<\/p>\n

\u5317\u7c73\u81ea\u52d5\u8eca<\/strong>
\n\u73fe\u4ee3\u306e\u81ea\u52d5\u8eca\u306f\u30e1\u30fc\u30c8\u30eb\u6cd5\u3067\u3059\u304c\u3001\u30ab\u30b9\u30bf\u30e0\u30ab\u30fc\u3001\u30ec\u30fc\u30b7\u30f3\u30b0\u3001\u30ec\u30b9\u30c8\u30a2\u5e02\u5834\u306f\u30a4\u30f3\u30c1\u7cfb\u30d5\u30a1\u30b9\u30ca\u30fc\u306b\u5927\u304d\u304f\u4f9d\u5b58\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n

\u534a\u5c0e\u4f53\u88fd\u9020\u88c5\u7f6e<\/strong>
\n\u7c73\u56fd\u8a2d\u8a08\u306e\u771f\u7a7a\u30c1\u30e3\u30f3\u30d0\u30fc\u3084\u30a6\u30a7\u30cf\u642c\u9001\u30ed\u30dc\u30c3\u30c8\u306e\u591a\u304f\u306f\u3001\u90e8\u54c1\u53d6\u308a\u4ed8\u3051\u306b\u30e6\u30cb\u30d5\u30a1\u30a4\u30c9\u306d\u3058\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

\u7d71\u4e00\u306d\u3058\u898f\u683c\uff08UTS\uff09\u306f\u5317\u7c73\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u5206\u91ce\u306e\u57fa\u76e4\u3067\u3042\u308a\u7d9a\u3051\u3001\u7279\u306b\u822a\u7a7a\u5b87\u5b99\u304a\u3088\u3073\u77f3\u6cb9\u30fb\u30ac\u30b9\u5206\u91ce\u3092\u652f\u914d\u3057\u3066\u3044\u307e\u3059\u3002Jucheng Precision\u306f\u3001\u4e26\u76ee\uff08UNC\uff09\u304b\u3089\u6975\u7d30\u76ee\uff08UNEF\uff09\u30b7\u30ea\u30fc\u30ba\u307e\u3067\u306e\u5168\u7bc4\u56f2\u3092\u7db2\u7f85\u3059\u308b\u30a4\u30f3\u30c1\u898f\u683c\u306e\u5de5\u5177\u3068\u30b2\u30fc\u30b8\u306e\u5305\u62ec\u7684\u306a\u5728\u5eab\u3092\u7dad\u6301\u3059\u308b\u3053\u3068\u3067\u3001\u4e16\u754c\u4e2d\u306e\u304a\u5ba2\u69d8\u306e\u30ae\u30e3\u30c3\u30d7\u3092\u57cb\u3081\u3066\u3044\u307e\u3059\u3002\u6a19\u6e96\u7684\u306a\u30d5\u30a1\u30b9\u30ca\u30fc\u3068\u306f\u7570\u306a\u308a\u3001\u7cbe\u5bc6CNC\u52a0\u5de5\u3055\u308c\u305f\u306d\u3058\u306f\u3001\u30d4\u30c3\u30c1\u5f84\u304a\u3088\u3073\u30d5\u30e9\u30f3\u30af\u89d2\u306b\u95a2\u3059\u308bASME B1.1\u4ed5\u69d8\u3078\u306e\u53b3\u683c\u306a\u6e96\u62e0\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002\u5f53\u793e\u306f\u7279\u5b9a\u306e\u306d\u3058\u30af\u30e9\u30b9\u306e\u9054\u6210\u3092\u5c02\u9580\u3068\u3057\u3066\u304a\u308a\u3001\u4e00\u822c\u7d44\u7acb\u5411\u3051\u306e\u6a19\u6e96\u7684\u306a\u30af\u30e9\u30b92B\u5d4c\u5408\u3067\u3042\u308c\u3001\u5b89\u5168\u4e0a\u91cd\u8981\u306a\u98db\u884c\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u5411\u3051\u306e\u53b3\u3057\u3044\u516c\u5dee\u306e\u30af\u30e9\u30b93B\u5d4c\u5408\u3067\u3042\u308c\u3001\u304a\u5ba2\u69d8\u306e\u90e8\u54c1\u304c\u6bce\u56de\u5b8c\u74a7\u306b\u7d44\u307f\u4ed8\u304f\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002.<\/p>","protected":false},"featured_media":430,"template":"","process_category":[41],"class_list":["post-429","process","type-process","status-publish","has-post-thumbnail","hentry","process_category-threading-capabilities"],"_links":{"self":[{"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/process\/429","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/process"}],"about":[{"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/types\/process"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/media\/430"}],"wp:attachment":[{"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/media?parent=429"}],"wp:term":[{"taxonomy":"process_category","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/process_category?post=429"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}