API Standard 2-7/8" Reg Thread Protectors (YZF-C312)

API Standard 2-7/8" REG IF Thread Protectors (YZF-C312)A. Color: Black, Red, Green, Yellow, etc B. Material: Plastic(HDPE), Composite(Steel+Plastic, Plastic+Steel+Plastic) C. Follow the API Q1 quality inspection standard.    D. According to the API 5CT Annex I when design the product. E. Suitable for environments from -46 degrees to 66 degrees F. Thread Protectors are used to protect and cover the thread ends of Drill Pipes and Drill Collars from damage and contamination during transit, handling and storage ItemSize&ThreadAll PlasticComposite Type ASM(CEL)Composite Type ASM(CENL)1NC23 √ 2NC26(2-3/8", IF)√√√3NC26, DSTJ   4NC31(2-7/8", IF)√√√5NC31, DSTJ   6NC35√√ 7NC38(3-1/2", IF)√√√8NC38, DSTJ√√√9NC40(4", FH)√√√10NC40, DSTJ√√√11NC44√√ 12NC46(4", IF)√√√13NC50(4-1/2", IF)√√√14NC50, DSTJ√√√15NC52√√ 16NC56√√ 17NC61√√ 18NC70√√ 195-1/2", FH√√√205-1/2", DSTJ√√√216-5/8", FH√√ 226-5/8", IF√  232-3/8", REG√√√242-7/8", REG√√√253-1/2", REG√√√264-1/2", REG√√√276-5/8", REG√√√287-5/8", REG√√√298-5/8", REG√√√302-7/8", PAC√√ 312-3/8", PAC √ 324-1/2", H-90√√ 335", H-90√√ 346-5/8", H-90√√ 357-5/8", H-90√√ Features:        1.Low construction cost;        2.Corrosion resistance;        3.Good insulator;        4.No disagreeable odor;        5.Durable and waterproof;        6.Good quality and light weight;        7.Convenient to install and dismental; Why choose us:        1.Competitive price for all year round;         2.Better service;        3.Most sizes in-stock for immediate delivery;        4.Trackable information. /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1