Mutual Screw & Supply

5/16-18 X 3-1/4" 滾花杯頭內六角止付螺絲 | 合金鋼 (50 個/包)

5/16-18 X 3-1/4" 滾花杯頭內六角止付螺絲 | 合金鋼 (50 個/包) - Main image
$173.02 $258.24 In stock

5/16-18 x 3 1/4" 合金鋼製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矩調整。

  • 內六角驅動
  • 滾花杯頭尖端
  • 合金鋼結構

規格參數

  • 螺紋尺寸: 5/16-18
  • 長度: 3 1/4"
  • 頭型: 滾花杯頭
  • 材質: 合金鋼
  • 包裝數量: 50
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 (4.8 / 5 · 5 reviews)

Robert ★★★★★

The knurled cup point on these screws really bit into the material, preventing any spinning while I tightened them down. For a 3-1/4" fastener, the hex socket drive gave me plenty of control in that tight spot.

Olivia ★★★★★

The hex socket drive made torquing these into a tight bracket a breeze, and the 3-1/4" length gave me just enough bite for a secure hold in steel. A solid upgrade for heavy-duty applications.

Samuel ★★★★★

The knurled cup point really bites into the shaft, so I don't have to worry about these loosening under vibration. I also appreciate the hex socket drive for getting them tight in awkward spots. Exactly what I needed for a repair job.