Mutual Screw & Supply

1/4-28 × 3/8" 滾花杯點內六角止付螺絲 | 合金鋼鍍鋅 (250顆/包)

1/4-28 × 3/8" 滾花杯點內六角止付螺絲 | 合金鋼鍍鋅 (250顆/包) - Main image
$44.04 $73.4 In stock

1/4-28 x 3/8" 合金鋼鍍鋅滾花杯頭內六角止付螺絲，採用內六角驅動，可在狹小空間內進行高扭力調整。

  • 內六角驅動
  • 滾花杯頭尖端
  • 合金鋼鍍鋅結構

規格參數

  • 螺紋尺寸：1/4-28
  • 長度：3/8"
  • 尖端：滾花杯頭
  • 材質：合金鋼鍍鋅
  • 包裝數量：250
付款前核對

可用付款方式和最終總額會在結帳頁顯示。

何時寄出

請同時考慮訂單處理和運送所需的時間。

Standard Shipping: 訂單處理（工作天） 0–1; 運送（工作天） 7–15.

Express Shipping: 訂單處理（工作天） 0–1; 運送（工作天） 7–15.

查看詳細說明
需要退款時

詢問退款時，請向店舖提供訂單編號。

退貨前請聯絡客服確認退款處理時限。

查看詳細說明
配送費用

請核對收貨地區與所選配送方式的費用。

Standard Shipping · 美國: US$0.00

Express Shipping · 美國: US$3.99

查看詳細說明
退貨前須知

寄回商品前，請先確認適用的退貨條件。

美國 · 退貨期限（簽收後天數）: 30. 退貨方式: 郵寄退貨. 退貨運費: 賣家承擔.

查看詳細說明

Customer Reviews (5.0 / 5 · 5 reviews)

Richard ★★★★★

The knurled cup point really grips the shaft tightly without marring the surface, exactly what I needed for a stubborn pulley application. These set screws seated perfectly with a standard hex key, and the zinc plating seems durable.

David E. ★★★★★

I was worried the hex socket might strip under heavy torque, but these set screws held firm even in a tight spot. The zinc finish makes them easy to see against dark metal, which is a nice bonus for quick adjustments.

Ava M. ★★★★★

The knurled cup point bites nicely into the shaft without slipping, and the zinc plating seems durable enough for repeated adjustments. I used these for a threaded insert application, and the hex drive made tightening them in cramped spots much easier than a regular screw.