Patented Wright Drive distributes contact over a larger surface area for greater gripping power and strength.
| Part Number | Class | Drive | Nut End Config. | Style | SAE or Metric | Special | Finish | Surface | Nut end Nom. Size | Shape / Drawing | Overall Length -L | Nut End Diameter - DS | Drive End Diameter - DD | Nut End Depth - BD |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3588 | Hand | 3/8"Dr | 6 Pt | Standard | Metric | Spark Plug | Chrome | 18mm | I | 2-1/2" | 31/32" | 3/4" Hex | 1-1/2" |